Roman Imperial
Diadumenian as Caesar, (217-218 AD) Rome.
AR Denarius (23.9mm 2.92g)
Obv: M OPEL ANT DIADVMENIAN CAES.Bareheaded and draped bust right.
Rev: PRINC IVVENTVTIS. Diadumenian standing left, head right, holding signum and sceptre; two signa to right.
Due to the short-lived kingdom, their money was scarce. Therefore, the people sometimes made a hole, sometimes made a frame and turned it into a necklace. This coin was used by making a necklace with a gold frame. The handle part is detached from the frame.
RIC 102.