We bought this upright piano for our daughter to learn on but I can't seem to find any info on it. Serial number 23930. Any info would be fabulous. Thank you.

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

This was an easy search!

-Details of Ronisch Pianos-
Make Ronisch Made by Pfeiffer / Bluthner Rating (see Key) Estimated Number In UK Year and serial number 1855 -420 1875 -6100 1895 - 23000 1915 - 63200 1935 - 76250 1955 -78300 1966 - 100000 1985 - 185000 2000 - 209960 1 more row

Ronisch Pianos Information ' Roberts Pianos - Oxford

https://www.robertspianos.com > cdetails > Make=Ronisch...
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Ronisch piano serial number reference information. Find out ...

http://www.besbrodepianos.co.uk > pianoserialnumber
Find out the age of your Ronisch piano here. Simply type in the serial number into the box below then click "Calculate". Type in your piano's serial number:.

Jacob Brothers from 1921 according to the link shown:


https://www.mypianofriends.com/i-have-a-jacob-brothers-piano-model-number-57866-but-i-cant-find-any-infor...-107545.html

Quoting:

I have a Jacob Brothers piano model number 57866 but I can't find any infor... by Guest 5 days ago
9
I have a Jacob Brothers piano model number 57866 but I can't find any infor... I have a Jacob Brothers piano model number 57866 but I can't find any information on it? Anyone know anything regarding this model?
Posted on Questions & Answers
Answer
4 days ago C. Anthony
Guru
Blogs: 48
Forum: 16,526
Votes: 420 What type of information do you want? you have the piano in front of you!
specifically what do you want to know?
the SN shows 1921 date.
Have you tuned it this year? If the piano will not hold tune to A=440hz, the value would be 0. However, I would think it would hold 440...but I may not.
Call your local piano technician to check it fully.
CAPReply

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1866 to 1894

(1905)!! Please Read On How To Tell How Old Your Piano Is !! I Learned This From Grandma !!
Piano serial numbers usually have five to seven digits, but may have fewer or more, depending on the manufacturer and age of your piano. Serial numbers may also include a letter as well.
Here are the TOP FIVE places to locate the serial number of your spinet, console, or upright piano:
Serial number locations are found:
1) On the piano's cast iron plate. After lifting up the lid, look along the top front area of the plate. The serial number may be to the right or the left, or in the middle.

2) Under the opened lid on the ledge, stamped on a little plaque, to the right or to the left.

3) Stamped on the back of the piano; near the top of the wood frame.

4) Printed on one of the hammers, found on either end of the piano (newer or imported pianos).

5) Printed on one the keys - behind the nameboard, inside the piano (newer or imported pianos)

put info into google and it might give you a list of were to look

Try looking inside the piano where the strings are. You might find a name or a model number.

Here is a good place to look for your piano by make & serial number.
There are times when your piano name or number is not listed. They can help you find the year your piano was manufactured in most cases. Since you have the name & serial they should be able to answer your question.
http://www.bluebookofpianos.com/serial1.htm

Best of Luck

If your piano was made for the U.S. and is a grand or upright, this serial number would show that this piano came from the mid 70's 1973-77 and was manufactured in Hamamatsu, Japan. You should be able to google your piano from here to find others similar to it to get a price or call your local piano tuner!

This site might help you:http://www.bluebookofpianos.com/grades.html