I'm not going to lie, I got this coin for a song. Listed on eBay by a seller who primarily sells vintage baseball cards, I won it for a mere $35, plus $1 for shipping. Apparently, none of the seller's usual clients were interested. It would be a memorable coin if only for that, but it is also an extremely rare variant of the Annona type with only one specimen cited in RIC. Vespasian Æ Sestertius, 21.45g Rome mint, 77-78 AD RIC 989 (R3). BMC - . Obv: IMP CAESAR VESPASIAN COS VIII; Head of Vespasian, laurerate, l. Rev: ANNONA AVGVST; S C in field; Annona std. l., with sack of corn ears Ex eBay, 13 April 2019. The bronze issue of 77-78 struck at Rome was quite small, all the sestertii from it are considered rare. The 'IMP CAESAR' left facing obverse portrait with Annona reverse is listed in RIC as unique with one specimen cited from the Paris collection. None are listed in the RIC II Addenda. This then is the second known specimen, a double die match with the Paris coin. A classic severe portrait (B. Levick called them 'straining' portraits) combined with a beautiful dark olive green patina. This sestertius is a great example of why most R3 (unique) coins are assigned that status temporarily. I wonder, how many more of these are out there? It likely was in someone's collection for many years unnoticed as a rare type. Perhaps assumed to be a common coin. Who else has any? Who else cares? Feel free to post your bargain and/or 'unique' coins! Thanks to @Jay GT4 for photographic assistance.