Antique Key - S.P.G. MYSTERY Piano Lock Key 2⅛" - ref.k537

Marked ' S.P.G. '

Please send me a message if you know the maker

Impossible to date exactly without knowing the makers name
However, keys of this style generally date to the 1910's & 1920's

Approximately:
55mm (just over 2⅛") in length
8g in weight

General usage wear, knocks, dings and marks

Sold as a collectable key only
I cannot guarantee this will fit YOUR piano as locks may have been damaged or changed

Several hundred more keys and padlocks are available in my eBay shop