"polyhedra die" by Eric Harshbarger

"polyhedra die" by Eric Harshbarger

http://www.dicecollector.com/HIGHLIGHTS_MAY_2011.html

http://www.ericharshbarger.org/dice/

Please welcome Eric Harshbarger

Please welcome Eric Harshbarger, puzzle/game designer & lego sculptor. He's the one who asked me about The Armory dice with the letter "A".
http://www.ericharshbarger.org/

d20 with an "A" instead of a "1"

I received a query about these dice which came with a Holmes set bought in 1980. They have the letter 'A' in place of the number 1. The d20 is 0-9 twice, but one of the 1's is an 'A'. Anybody ever see these before or know who made them? Armory?