This lock sold for $55.50 (Plus $4.95 Shipping).
This Lovely little brass lock and key is made by A. E. DEITZ and is marked with his name. Assuming this to be A.E. Deitz of Brooklyn, New York, Alonzo E. Deitz worked at 73 Clymer Street from 1867-1912. The key does work and the lock does lock and unlock. It has been on one of my Dietz lanterns for quite some time.......similar name but spelled differently. - eBay