Watch List notes:

The 'White Rose' Collection | Kingdom of Macedon, Antigonos II Gonatas (277/6-239 BC), AR Tetradrachm, Amphipolis, struck c. 271/68-260/55 BC, Horned head of Pan left, lagobolon over shoulder, in the center of a Macedonian shield rev. BASILEIOS ANTIGONOY, Athena Alkidemos advancing left, shield decorated with aegis on left arm, preparing to cast thunderbolt held aloft in right hand, crested Macedonian helmet to inner left, monogram to inner right, 17.11g, (TEA Period I, Group 35, 146b (O4/R3)) Perfectly-centred and well-struck, lustrous with light toning to reverse, better good very fine.
Provenance
The "White Rose" Collection of Roman Gold Coins, acquired between 1941 and 1949,
Estimate: £1000 - £1800