I love antique keys and the symbology of keys; gateways, opening, closing, opportunity, unlocking possibilities and potential. 
I usually wear a key around my neck, and I had my favourite 16th Century casket key cast in silver so you can have your own.   Each one is finished by hand and oxidised and scrubbed back to give a pleasing antique look.   This one has the addition of a contrasting 18ct gold ring around the stem
 
One supplied, gift-boxed.
If you have any questions about this piece, please drop me an email to lydia@niziblian.com