Ash 1931.091 (SCIAMVS 05, 039 no. 24) [diagram]

Obverse
o
Reverse
rr NaN  (blank)

1 The correct calculation would be 3;45 × 1;52 30 × 0;30 = 3;30 56 15 . See Robson (2004 ) for an explanation of how the error arose.