Kyle’s Stamps purchased US #64 & 65 certified with the intention of using them as a color reference for early US stamps.
He is building his Mystic albums and wanted to make sure he is putting proper stamps in place. However, this was almost an experiment just for fun. Even though his extra potential #64 stamps were in poor enough condition, he couldn’t confidently decide their colour. He found this an educational experience and was ultimately glad he bought them.