Help With Gemeinhardt Wooden Piccolo

[Oppleman]

I can use some help identifying this (vintage?) Gemeinhardt piccolo flute. The only marks to identify it are the Gemeinhardt monogram with "Gemeinhardt" and "ELKHART IN USA" near the head joint, "Sterling" in the silver metal that the keys mount to, and the number 1 then 156 also in the metal under the keys. Any help identifying this and information about it would be greatly appreciated. Thank you!