Pictured are two variants of the CD 190 AMT [020] "Two Piece Transpositon" spelling errors, both made by Hemingray. On the left is the later stamped embossing, and on the right is the earlier prismatic style embossing. This is the only Hemingray error I've seen that was made on two distinct molds spanning two different time periods.

It's also interesting to note that the price guide has always listed a matching CD 191 (Top) with the "Transpositon" spelling error, but to date I have never seen one and I question if it truly exists. If you have seen one, please contact me!