Watch List notes:

The Roman Empire

Diadumenian caesar, 217 – 218. Sestertius 217-218, Æ 23.14 g. Draped and cuirassed bust r. Rev. Diadumenian standing facing, head r., holding standard and sceptre; on r., standard and legionary eagle. C 7. RIC 211.
Very rare. Brown tone gently smoothed, otherwise about extremely fine

Ex Hirsch 30, 1911, Sir H. Weber, 1107; Hirsch 33, 1913, Baron Friedrich von Schennis, 1372; Glendining & Co. 2 April 1952, 2689; SBV 28, 1991, 645 and NFA XXX, 1992, 282 sales.