What is age and value of a Vose & Sons antique piano?

Between 1925 and 1930. A more precise dating would require possibly examination of markings on the piano or a piano technician or a historian who specializes in vintage pianos. Piano Serial Numbers Search - Find the Age & History of Your Piano (total-piano-care.com)

Gulbransen Player Piano - Antique Piano Shop

1927 Gulbransen 55" Upright Piano (intunepianoservices.com)

Gulbransen Upright Pianos - Piano restoration & sales nationwide: Steinway, Yamaha & Knabe (countrypiano.com)

1920: Serial numbers around 140,000
1925: Serial numbers around 218,000
1930: Serial numbers around 301,000

Question edited for clarity, change 'stock' to 'Steck'.

Made in 1964

https://www.bluebookofpianos.com/pianoage.html#STECK,

Value depends on the type and condition,

Unrestored value can range between $500-1,000.

Up to

Steck, George

Antique Piano Shop https://antiquepianoshop.com > Online Museum
George Steck Reproducing Player Grand Piano. $45,000.00. These Reproducing grand pianos were a luxury only afforded by the very wealthy during the 'tween, ' ...

More here

https://www.google.com/search?q=george+steck+piano+value

..

There is a lot of information required to value a piano like that. According to records, that piano was made around 1910. The things that we don't know and cannot verify is the condition of the unit; wood type, physical damage, care etc all are considered. You need to have an appraiser come and look at it. You may be able to take very clear direct photos and submit those to an appraiser.

try this

Kohler and Campbell Pianos ' Serial Numbers - Total Piano Care

www.total-piano-care.com/kohler-and-campbell-pianos.html

Piano Serial Numbers Search - Find the Age & History of Your Piano

www.total-piano-care.com/piano-serial-numbers.html

Kimball piano values vary based on age and condition; as of 2015, many uprights sell for $10,000 or more. Kimball is a well-known brand, and several of its antique pianos are considered highly collectible.
The Kimball Piano Company, based in Chicago, was one of the largest piano manufacturers in the world. At the turn of the century, Kimball built approximately 20,000 pianos annually. Kimball produced pianos under different brand names such as Hinze, Dunbar, Whitney and Harrison. Styles were influenced by Victorian, Greek Revival and Arts and Crafts architecture, and upright models were often available as player pianos. Kimball was sold to the Jasper American Corporation in 1959, and its pianos were discontinued in 1996.

Finding Serial Numbers on Pianos and Organs

www.omara-meehan.com/help/flash/serial.cfm

The Serial Number -- usually somewhere between four and six. wood or stamped onto the model plate. digits -- is probably located inside the piano on the metal ...

Piano Serial Numbers Search - Find the Age & History of ...

www.total-piano-care.com/piano-serial-numbers.html

Piano serial numbers help to identify the age of your piano and the history surrounding its ... 3) Stamped on the back of the piano; near the top of the wood frame. ... 5)Printed on one the keys - behind the nameboard, inside the piano (newer or ...

Piano Age Request How Old Is my antique piano when made

www.amadeuspianos.com/agerequest2.htm

Made between 1940-1946


http://www.total-piano-care.com/baldwin-pianos.html

Milton Piano
From http://antiquepianoshop.com/online-museum/milton/ :
The Milton Piano Company was established in New York in 1892. In the early 20th Century they offered a full line of uprights, player pianos, and grand pianos, and they enjoyed a reputation of building very well made instruments. In the mid 1920s, Milton built a coveted new state-of-the-art factory on West 51st Street, New York City. There is some evidence that Brambach and Milton were somehow affiliated with one another, and their factories were located within blocks of each other. The Milton Piano Company built pianos until the late 1950s era.
From http://bluebookofpianos.com/agesm.htm#MILTON :
This name is a familiar one to the magical world generally. Milton pianos have been manufactured for many years and always with the care that produces most satisfactory results. The modern factories in which the Milton piano is produced are new, large structures located at 626-630 West 51st St., New York City. Milton pianos and player-pianos are thoroughly well-made, beautiful instruments, designed for a class of discriminating music lovers. They possess a tone at once powerful and sweet. They are pianos in which purchasers are assured good values and they are pianos that give exceptional satisfaction. Milton reproducing pianos are equally representative and popular.
All of which is great, but:
Be aware when dealing with antique pianos:
Many of the old (say, 1850 to 1940) pianos were made by companies that are no longer in business (failed, or bought out by a competitor), or companies that built the instrument under another name.
Pianos back then were not really mass-produced, they were hand crafted- and each manufacturer made their piano very differently, so:
Short Version: there will be parts that will work on only that *one* model of piano, so getting parts will be difficult if not impossible.
Long Version: Musical instrument craftsmen (craftspersons?) love to innovate, for a variety of reasons: they may find a new way, for instance, to connect the key to the hammer that strikes the corresponding note. It might be a better way to do it, or, more often, it was to come up with a cheaper way to do it.
The point I'm making is that your Struz Brothers piano will have parts that are totally different from, say, a piano made by either Krakauer Brothers, Doll, Jacob & Sons, or Mathushek & Son Piano Company (companies that started around the same time as Sturz Brothers). The parts may vary from one year to the next, or even one model to another.
So, if your Sturz Brothers piano needs a key replaced, or the harp has bent under pressure, the soundboard is cracked, or any number of things that can plague an old instrument, you'll need to either
A) find someone that is willing to sell parts from a similar model (if they're parting it out, it has more problems than yours does), OR
B) you'll need to have the part manufactured from scratch by craftsmen that specialize is rejuvenating old pianos. This will be expensive far, far beyond what the piano is worth- and these craftsmen live very well, BTW...
Last Caveat: Upright models sell for much less (and the term "Upright Grand" was just an advertising phrase, there is no such animal.) Uprights (spinets particularly) sound very... tinny, is the best description I can think of. Tinny like the toy piano your granma gave you when you were five- remember, the black keys were painted on? Tinny like that.
So, unless the piano is a Steinway & Sons, a B?sendorfer, or a Fazioli, don't count on huge offers for your instrument. And if it came to you from your great-aunt Tilly and you can't bear to part with it, that's great, I understand sentimental value. Just know that this will cost a great deal to bring to playing condition.
I'm often told "But the keys all work, the pedals are still tight, and the tuner told me that it's not a bad piano!" All this is true. But please remember that professional buyers know all of these potential pitfalls won't offer much, and the guy on Craigslist that needs to replace the piano for Great-Aunt Tilly can't afford much.
Good luck!

Warning: Very long-winded reply approaching.

Sturz Brothers pianos were established in New York state in 1871, and seem to have the reputation as "[Sturz Brothers]...pianos and piano-players are distinctly high-grade instruments" (per http://www.bluebookofpianos.com/).
I can't find any information as to when they ended making them.
All of which is great, but:
Be aware when dealing with antique pianos:
Many of the old (say, 1850 to 1940) pianos were made by companies that are no longer in business (failed, or bought out
by a competitor), or companies that built the instrument under another name.

Pianos back then were not really mass-produced, they were hand crafted- and each manufacturer made their piano very
differently, so:
Short Version: there will be parts that will work on only that *one* model of piano, so getting parts will be difficult if not
impossible.

Long Version: Musical instrument craftsmen (craftspersons?) love to innovate, for a variety of reasons: they may find a
new way, for instance, to connect the key to the hammer that strikes the corresponding note. It might be a better way to
do it, or, more often, it was to come up with a cheaper way to do it.
The point I'm making is that your Struz Brothers piano will have parts that are totally different from, say, a piano made by
either Krakauer Brothers, Doll, Jacob & Sons, or Mathushek & Son Piano Company (companies that started around the
same time as Sturz Brothers). The parts may vary from one year to the next, or even one model to another.

So, if your Sturz Brothers piano needs a key replaced, or the harp has bent under pressure, the soundboard is cracked,
or any number of things that can plague an old instrument, you'll need to either
A) find someone that is willing to sell parts from a similar model (if they're parting it out, it has more problems than
yours does), OR
B) you'll need to have the part manufactured from scratch by craftsmen that specialize is rejuvenating old pianos. This
will be expensive far, far beyond what the piano is worth- and these craftsmen live very well, BTW...

Last Caveat: Upright models sell for much less (and the term "Upright Grand" was just an advertising phrase, there is
no such animal.) Uprights (spinets particularly) sound very... tinny, is the best description I can think of. Tinny like the
toy piano your granma gave you when you were five- remember, the black keys were painted on? Tinny like that.
So, unless the piano is a Steinway & Sons, a B?sendorfer, or a Fazioli, don't count on huge offers for your instrument.
And if it came to you from your great-aunt Tilly and you can't bear to part with it, that's great, I understand sentimental
value. Just know that this will cost a great deal to bring to playing condition.

I'm often told "But the keys all work, the pedals are still tight, and the tuner told me that it's not a bad piano!" All this is
true. But please remember that professional buyers know all of these potential pitfalls won't offer much, and the guy on
Craigslist that needs to replace the piano for Great-Aunt Tilly can't afford much.
Good luck!

First, we'll need the make and, if possible, the model of the instrument.

But be aware when dealing with antique pianos:
Many of the old (say, 1900 to 1940) pianos were made by
a) companies that are no longer in business
b) companies that were bought out by a competitor
c) companies that built the instrument under another name.
They were also not real mass-produced, so getting parts will be difficult if not impossible.
People that buy pianos know these things, and will make an offer accordingly.
Additionally, upright models seem to sell for much less (and the term "Upright Grand" was just an advertising phrase.
So, unless the piano is a Steinway & Sons, a Bosendorfer, or a Fazioli, don't count on huge offers for your instrument.