Sale: Triton IX, Lot: 1392. Estimate $2000.  Closing Date: Monday, 9 January 2006.  Sold For $2600. This amount does not include the buyer’s fee.

GAIUS (CALIGULA). 37-41 AD. AR Denarius (3.62 g, 6h). Rome mint. Struck January 41 AD. C CAESAR AVG PON M TR POT IIII COS IIII, laureate head of Gaius (Caligula) right / S P Q R/P P/OB C S in three lines within oak wreath. RIC I -; RIC I (1st ed.) 7 = BMCRE 32 = RSC 23a; Lyon -; BN -; Cohen -. VF, lightly toned, scattered marks, minor porosity. Extremely rare, the third known. ($2000)

Although the first of these three rare coins, the BM piece, was cataloged in the first edition of RIC I, it was left out of the revised edition. In that edition, Giard notes (p. 110, note *) that the BM piece was a misreading of TR POT III COS III. In fact, the first edition was correct, the piece was not misdescribed. The second known example of this type was sold as lot 56 in the Bourgey sale of 17 December 1913. Ironically, Bourgey misdescribed that coin as TR POT III COS III.