Celtic Britain, Trinovantes, North Thames, AR Half Unit. 60-20 BC. 0.45 g.

Horse galloping right, head turned back, serpent in upper left field. 
Horse walking right, beaded mane, dots and wavy line above, dot below. 

Unpublished, PAS SF-4CBAAA.
Designated for inclusion in BNJ "Coin Register".
Found near Bury St Edmunds, Suffolk, in March 2019.

With permission of TimeLine Auctions 
(www.timelineauctions.com), Jan 2021