It is likely this type was issued during both the rule of William de la Roche, AD 1280-1287 and the minority of Guy II de la Roche, AD 1287 to 1294. Because the medieval form of William is spelled with a G for the W, both William and Guy could have used this inscription starting with a G.
Denomination : Billon denier. Mint : Athens.
Reference : COINS OF THE CRUSADER STATES - Pages 386, #86 variety (large pellet stops rather than smaller double pellet stops).
Size : 16.7 x 18.8 mm. Weight : 0.74 grams.
Grade : gVF
Obverse : Short cross with G DVX ATENES around, with large pellet stops.
Reverse : Castle tournois with bar and open circles, with ThEBE CIVIS around, with large pellet stops.