CNG 87, Lot: 903. Estimate $500. Sold for $1200. This amount does not include the buyer’s fee.

EGYPT, Alexandria. Nero. AD 54-68. AR Tetradrachm (25mm, 12.93 g, 12h). Dated RY 13 (AD 66/7). Radiate bust left, wearing aegis; L IΓ (date) below chin / Corbita with helmsman under sail to right; two dolphins in water. Köln 186; Dattari (Savio) 264; K&G 14.99 corr. (obv. legend); RPC I 5296. Good VF, excellent metal. A wonderful reverse.

From the Clarence & Helen Zaar Maritime Collection.

There appear to be two different varieties of this type – one with dolphins and one without. The last two references cited above do not differentiate.