Vintage Flute Gemeinhardt Elkhart M2, most likely need maintenance - $35 (Plainville)

Vintage flute Gemeinhardt M2: last time was in working order, but last 4 years son doesn't do band at school anymore, so I would assume the flute will require maintenance (because of the reason of sitting on the shelf quite long time).
It is complete set with original case, the serial number is C40109 but honestly it doesn't tell me anything.
Use it for parts or just do a maintenance if you know how to.
35$