I am pretty certain these letter molds were used for making chocolate, and--one of them stamped Amsterdam on reverse--believe they are both Dutch. I found just these two together, immediately to my eye spelling Y(O)U! Almost better than chocolate itself!
Y measures 6 1/2" t x 3 1/8" w x 1/2" d. Both in good condition, with light surface rust as evident. Nice weight, with the back of the Y stamped Amsterdam. Sold as a pair.