VTG I Sterling I Green I Motor Coach I Bus I Charm

A cool sterling charm of a green motor coach/bus w/turning wheels. In good vintage condition, w/green paint/enamel on body of bus & black paint/enamel on windows, still vivid w/small areas of fade. All angles shown, measures approx. 3/4-inch(L) & 1/4-inch(W), photos 6-7. Last 3 photos show hallmark on jump ring, I am 95% sure that this is a Carl-Art charm (hallmark "CA" w/arrow through it), but please review/judge for yourself. (Charm reminds me of old buses in Ireland, photos 12-13!)