Countermark

https://rpc.ashmus.ox.ac.uk/countermark/609 
GIC 484
?, varioulsy described at a 'T', a 'hammer', or a 'poppy head'
shaped 
5.5 mm tall 4.5 mm across at widest point 
Dionysopolis (Moesia)
as it’s Dionysopolis might be a styalised bunch of grapes? 
List of countermarks View on a map

Coins with this countermark

Number Image TypeNumber CoinNumber VolumeNumber
RPC I, 1801A Show 1801 1 1
RPC I, 1801A Show 1801 4 1
RPC I, 1801A Show 1801 5 1
RPC I, 1801A Show 1801 6 1
RPC I, 1801A Show 1801 2 1