Nice finds...your first coin is RIC 64a. There are different workshops CONA, CONB etc., all of which are still RIC 64a; though RIC doesn't note any (but a lot of material was scanty for RIC IX, published in 1933 and a slim volume compared to other RIC volumes) and merely gives the mintmark as CON with the workshop blank, because the example(s) seen were not clear.
Your second coin, CONB✶ is unlisted for the star, though there is a mintmark of CONΓ✶ noted for the previous issue of VOT V (RIC 62b). You could call it 64a var.