Home > Listing of Enamels > Vintage EnamelClick Image To View Larger 261 Parchment (op) $4.00 Weight 1 oz. ($4.00) 8 oz. ($32.00) 16 oz. ($64.00) 3129:=:4,6361:=:32,6362:=:64 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.