The pair of zinc dichromate gold clamps that I saw on E-Bay were NOS service replacements in blue Ford bag, probably out of mid to late 90's. I passed cuz silver is all I have ever seen. Mine are pretty much down to bare steel after being cleaned up with steel wool. So off to the zinc silver bag I'm stockpiling to be sent out. Not a whole lot of gold zinc being used back in early '66 on the Mustang.
Ray