Here's another oldie antique key from my collection. This one I purchased from a fea market from Cochin, kerala. It's had bit of rust on the edges but it's a solid key made of iron.
This vintage key probably would date back in the 40's or early 50's. The barrel of the key is hollow.
Vital stats of this vintage piece
Weighs: 125 gm
Length : 6 inch
Contact me for price and postage rates.