Watch List notes:

L. Calpurnius Piso Frugi. AR Quinarius, 90 BC. Obv. Laureate head of Apollo right; below chin, E. Rev. Victory standing right, holding palm in left hand (and parazonium in right?); across the field, L PI-SO; in exergue, FRVGI. Cr. 340/2f var. B -. Syd -. cf. Banti 168 (Rarità 8). AR. g. 2.34 mm. 15.00 RR. A superb overweight example, perfectly centred and in excellent condition for the issue. Lovely iridescent tone. About EF.

A very rare variant, apparently unlisted in Babelon, Sydenham and Crawford.