Watch List notes:

Roman Empire, Antoninus Pius (AD138-161), AV Aureus, Rome, c.153-154, ANTONINVS AVG PI VS P P TR P XVII, laureate head right, rev. COS IIII, Antoninus Pius togate standing left, holding globe in extended right hand and volumen in left at side, 7.41g, 20mm., 1h (RIC III 233a; Strack 270; BMCRE 812; cf. Adda 183; Biaggi 717 this coin; cf. Mazzini 312; Calicó 1526a this coin. Cohen 313 var.), delightfully choice with fresh lustrous mint surfaces, handsomely centred, good extremely fine, rare, especially in this condition and with an exemplary provenance - this the reference coin for the series.
Provenance
Goldberg 104, 12 June 2018, lot 3320
Douglas O. Rosenberg, CNG 105, 10 May 2017, lot 903 - $10,800
Numismatica Ars Classica 27, 12 May 2004, lot 406 - CHF6,000
Bank Leu 22, 8 May 1979, lot 717
Leo Biaggi de Blasys, collection purchased en bloc by Ratto and Bank Leu, 1978

Estimate: £10000 - £12000