Constantine II, AE follis, London, 321 AD.

Obv: CONSTANTI-NVS IVN N C, radiate, draped, cuirassed bust left.
Rev: BEATA TRANQUILLITAS, Globe on altar inscribed 
VOT-IS-XX in three lines, P-A across fields.
Mintmark PLON.

RIC VII London 216

Courtesy of TimeLine Originals (www.time-lines.co.uk), June, 2011