That's a real beaut! I would have also punched "Add to Cart" immediately if I saw that one. Great catch, Gavin!
RIC VI, Londinium, Follis, No. 28a, Diocletian, Augustus of the East: IMP DIOCLETIANVS AVG .............. GENIO POPV -- LI ROMANI Laureate, cuirassed, bust. 11.5 gm.