I am trying to sell a Yamaha flute, can't figure out what model # it is... serial number is 365757 can you help?

Looks like this question has been asked many time; Check this forum for help:
https://forum.saxontheweb.net/showthread.php?213910-Help-identifying-Selmer-USA-Flute
Aloha, ukeboy57

try these links and see if they can offer any help

Flutes


Artley


Used Selmer Flutes

Emerson Flutes are an affordable and quality line of flutes made in the U.S.A. and historically the first factory-produced flute to use the William Bennett scale. Designed with exquisite care and painstakingly crafted with the finest materials, the Emerson brand has long been considered one of the best in its price range. Conceived by artisans, flutists and educators these flutes are designed to suit the musical demands of those seeking reliability, beauty of tone, and exact intonation.

Hi Erica.

Conn/Selmer has a web page with dating for a number of their affiliate instruments, though it doesn't look to be complete.
Serial Numbers If it was lumped in with the Conn 'Reed Mouthpiece' Instruments (as opposed to cup mouthpiece, which I'd think of as more 'brass', then it'd look to be 1899. The Artley Flute list starts with a serial # of 10000 in 1952. There appear to be other people out there having difficulty using their charts, and the Customer service page on the website is mum about contacting them directly, and suggests calling a nearby dealer. The dealer page is at
Dealer Locator Conn Selmer Inc

The description makes it sound like an Omega Model, see for instance

SELMER OMEGA STERLING SILVER OPEN HOLE FLUTE WITH CASE


Hoping that helps.., and Happy Holidays
D

This might help but no numbers given for Silver Plate

Model Name Production Period Serial Number Product type YFL-221N WIND INSTRUMENTS > FLUTES YFL-221N(2) WIND INSTRUMENTS > FLUTES YFL-221N(#570961-) #570961- WIND INSTRUMENTS > FLUTES YFL-221N(#754559-) #754559- WIND INSTRUMENTS > FLUTES YFL-221S 1979-1990 WIND INSTRUMENTS > FLUTES YFL-221S(2) 1990-2000 WIND INSTRUMENTS > FLUTES YFL-221(#553445-) #553445- WIND INSTRUMENTS > FLUTES YFL-221(#754559-) #754559-(USA ONLY) WIND INSTRUMENTS > FLUTES YFL-221(#757900-) #757900-(OTHER COUNTRYS) WIND INSTRUMENTS > FLUTES YFL-221GLHP WIND INSTRUMENTS > FLUTES YFL-221DX WIND INSTRUMENTS > FLUTES YFL-221U WIND INSTRUMENTS > FLUTES

My best advice: take some nice photos of your flute, marks, brands, serial etc. ant take it to a music instrument store where probably some musical guru will tell you this information.
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Your best bet would be to contact Armstrong for the info.
http://www.conn-selmer.com/index.php/en-us/our-instruments/band-instruments/flutes/?brand=Armstrong

Here is a flute chart. It is downloadable as well from the same site.

Modern Flute Piccolo Alto Flute

It would help if you had identified the guitar maker and location of the serial number. I assume it's a Yamaha, but the serial number doesn't coincide with any of the typical systems they used. The first two numbers could be the year of manufacture, but the earliest Yamaha I could find was 1966, so you may want to go direct to Yamaha and ask if they recognize the number based on the model number.Yamaha Corporation of America
6600 Orangethorpe Ave.
Buena Park, CA 90620
(714) 522-9011 Email Inquires:[email protected]

It is silver plated. The 'S' in the model number F100AS indicates silver. An 'N' in a Yamaha flute model means it is nickel plated...