Crispus AE Follis. 

Obv: CRISPV-S NOBIL C, Laureate, cuirassed bust left, 
holding shield on left arm and spear pointing forwards in 
right hand 
Rev: BEAT TRA-NQLITAS, altar, inscribed VOT / IS / XX, 
surmounted by globe, stars above. 
Mintmark PLON; F-B across fields. 

RIC VII London 250, rated C3

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

(Note: The obverse can have different legend breaks, e.g.
CRISPVS-NOBIL C)