the alphabet. from a to z. with some letters highlighted in some editions in order to form words.

capital letters on front side, small letters (plus special letters, ligatures and accents) on back. the font used is futura.

this coin has hardly any 90-degree angles.
there is a 2mm hole (e.g. for a string).

9 editions:
gold / gcf / 13
matte silver / a to z / 26
antique gold / geo ego / 26
matte gold / rainbow / 52
black nickel / single letter (a, b...z), 26 x 3 (78)
nickel / usa / 26
nickel / nl (netherlands) / 26
nickel / germany / 26
nickel / switzerland / 26