Ebay sale by Barry & Darling Ancient Coins, Jan 2001.

Constantius I, as Caesar. 300-303 AD. AE Follis 21 mm, 10.46 g. Ticinum mint. 

CONSTANTIVS NOB CAES, laureate head right.
SACRA MONET AVGG ET CAESS NOSTR, Moneta standing left, holding 
scales and cornucopiae.

Mintmark ST dot. 

RIC VI 46a. 

Note: no reverse break.