⭕ Here are a pair of black wrinkle paint Gaumont Kalee compression drivers with Vitavox (Same as S2) S type screw throats and original diaphragms. These two are serialed numbered 1677 & 2197 Although these look similar to Altec 288C type drivers with handles, the phase plug is very much different, being vaned instead of cone shaped, more like the older Western Electric field coil drivers . Also notice the single roll diaphragms.