I've seen a ton of these posts on this forum, but they haven't helped me so far. So, sorry, I'm gonna post another one!

I know it's a 50 series open-hole Elkhart, serial #501972, and there are also the numbers 530 above the serial number. I tried using the pdf download provided by the Gemeinhardt website, but the serial number isn't on there, so I don't have any specs on it (e.g. whether it's solid silver or silver-plated, year it was made, the original price, etc.).

Thanks in advance for any help/resources!

Here's a listing from 2006:

SOLD! Gemeinhardt 530 Flute 50 series, great <gs3333@msn.com> - Spokane, Wa 99212 - Sunday, September 10, 2006
Gemeinhardt Flute Hi Quality Silver Plated Flute Featuring H1 Headjoint Sterling Silver lip plate The Flute you are bidding on is a Gemeinhardt 50 series (530). This is a special edition of the 50 series, and is a step above the normal student flute model. The purchase price was $1,499.99 when we bought it. My daughter has had the flute for roughly a year and a half, but is no longer interested in playing. It is in great condition, and has been cleaned on a regular basis. We recently had the pads professionally cleaned and the screws tightened . The flute has no damage and is clean and ready to go $259.99. Thank