The product is a vintage Chubb postbox lock, made of brass in the United Kingdom. It comes complete with 4 keys, making it a secure and authentic addition to any antique or historical piece. The lock is a genuine original post office item, adding to its charm and authenticity for those seeking unique architectural antiques. This is an original issue post box lock, unused. I think it is for a full sized postbox, although I am not 100% certain. I think it dates from the 1980’s and is genuine post office.