This mold is one of the most amazing that I’ve ever had and certainly one of the oldest. This is copper and dates back to about 1900. It’s pictured in the Wolf book on chocolate molds on page 30. This is copper lined with tin on the inside. Some of the earliest chocolate molds were made with copper. The detail on this is just exquisite. Stamped 140 on one side. That is the mold number. 5 1/2 inches tall and about 5 inches wide. Has a lot of patina and verdigris. Inside is lined with tin and has a few small rust spots.