Unpublished AE3, Sirmium mint.

Obv: DN VALEN-S PF AVG, pearl diademed, draped, cuirassed bust right
Rev. GAVDIVM R P, two emperors standing facing, both holding globe and spears.
SIRM in ex.

Unpublished in all major reference works.

Contributed by Vel Garnett, Aug. 2000

From John Lavender of CNG about this coin:
This coin is not published anywhere. I've checked RIC IX (and RIC  VIII in case it could be a mule), Hunter, Alföldi on the 
Festival of Isis  coinage, Cohen, Toynbee on medallions, Göbl. 
When I first saw it, I thought it was a mule, e.g. combining a 
bronze obverse die with a gold reverse, but that is not the case. 
It's not often that you run across something totally new... The 
Sirmium mint closed just after Valens' elevation to the purple 
and did not reopen until his  death, so it's reasonable that 
something new would be discovered.