Home > Listing of Enamels > Vintage EnamelClick Image To View Larger 595 Dove (op) $4.50 Weight 1 oz ($4.50) 8 oz ($36.00) 16 oz ($72.00) 1902:=:4.5,1904:=:36,1905:=:72 Quantity: - + Opaque, cataloged, Thompson Enamel for Copper, Silver, Gold, Iron and Steel. This enamel is "medium fusing" and should be fired at 1450 to 1550 degrees F. for approximately 2 to 4 minutes. All Enamel is pre-1990, 80 mesh and lead bearing.