Watch List notes:

Mysia, Cyzicus. pseudo-autonomous issue under Roman rule. Time of Gallienus, A.D. 253-268. AE 29 (29.01 mm, 11.27 g, 1 h). KV-Z[IKOC], Diademed head of the founder of Cyzicus right / KVZIKHNΩ-N N[ЄΩ]ΚΟP[ON], Small altar between two flaming, serpent-entwined torches. Cf. SNG France 607 var. (ethnic). VF, smooth, dark green patina obverse and atop reverse devices, light green deposits in recesses and fields, particularly on reverse; obverse slightly weakly-struck losing several letters. 

Presumably "Θ" is a mark of denomination, if so, it indicates 9 of the unit (assarion?)