Joe, I read your paper on the Nonus abacus and I'm interested in purchasing one that meets your specifications, specifically 9 beads with alternating colors.
Andrew: if you could include an email link on your blog, we can talk offline about getting you a 9-bead abacus. Or contact me at: < j v c a b a c u s (at) y a h o o DOT c o m>
Joe, I read your paper on the Nonus abacus and I'm interested in purchasing one that meets your specifications, specifically 9 beads with alternating colors.
ReplyDeleteAndrew
Andrew: if you could include an email link on your blog, we can talk offline about getting you a 9-bead abacus. Or contact me at: < j v c a b a c u s (at) y a h o o DOT c o m>
ReplyDelete