To get the embossing done they would of had to get a die made up which is where all other attempts have fallen down. Big expense to get a die handmade, if you could find someone to actually do it. That was the whole problem to start with, the original die was lost somewhere along the line so we have been waiting until now for repro toppers.
I dare say these are going to be pretty popular as those with and without toppers snap them up.
