10 Heller 1993, Technological test for the adjustment of stamping machines from June 1993. The coins were struck on 10, 20 and 50 Heller flanks, including the modification of the edge of the respective coins. Most of the specimens were officially destroyed in 1996., Česká mincovna, 0,6 g, 15,5 mm, AlMg,
Very rare!,
Moravec I. (10haléřů) str.255,

Condition: good EF / about UNC