Here is a restored Greene, Tweed & Co. No. 1 Hammer, used to pound sheet metal around molds and mandrels in the days before large presses were brought to bear in the production of precision-formed sheet metal panels. The hammers, Nos. 1,2,3,4, and 5 are still found in flea markets. The leather faces are also still available. PM me for the name of the company that still sells them.
Greene, Tweed, in business since 1863, started as a hardware manufacturer and distributor. Today, it is a global business, offering products in industrial, aerospace, computer, defense, and other global business sectors.