A very unusual oversized key dating to approximately the mid 20th century, and made to be used as a display piece or trade sign in a locksmith's shop. It is made of cast aluminium with nice detailing and an appealing aged patina. It is a really large and sturdy piece that displays well. I have photographed it next to a normal door key so that the size can be fully appreciated.
It is in good condition with minor age related wear.