Watch List notes:

ANCIENT COINS, GREEK COINS, Ionia, Teos (c.540-478 BC), Silver Drachm, 5.83g, Griffin seated facing to right, raising its left forepaw, rev quadripartite incuse square, with rough surfaces (J M Balcer, 'The Early Silver Coinage of Teos', SNR 47, 1968, p. 31, 43; BMC 1; SNG von Aulock 8014; SNG Copenhagen 1433). Toned, about extremely fine.
ex Frank Sternberg, Auction XIII, Zurich, 17 & 18 November 1983, lot 189
ex Prospero Collection, The New York Sale XXVII, Baldwin/Markov/M&M, 4 January 2012, lot 525, sold for US$2925

Estimate: £1200-1400