The Heeren Brothers Columbian Shield advertisement in last week's edition featured in the center pictured below it, a so-called dollar HK 222. That medal is attributed to Wilheim Mayer of Stuttgart, Germany. I find it curious it is depicted on the Heeren Brothers advertisement. Perhaps the attribution in H&K to Wilheim Mayer in Germany is incorrect?

Well, Heeren was a big operation, but I find it unlikely that a large Pittsburgh-based operation would use engravers overseas in Germany, due to the logistics, timelines, costs, etc. Is it possible that the signature W M on the HK 222 medal being advertised by Heeren Brothers does not mean Wilheim Mayer?

It was created by my great great grandfather Frederick Mayer, a noted Pittsburgh artist and sculptor. The shield was indeed sold by Heeren Brothers of Pittsburgh. The shield was cast by Mayer's brothers who had a foundry in Stuttgart Germany.