Yugoslavian - but Croatian today - Dubrovnik tram car no. 12 and open trailer car no. 25.
N.B. This image, presumably misappropriated from its eBay listing, is shown at least twice on the Tramvaj u Dubrovniku (povijest) web forum. What you are viewing here is scanned from the original negative which I own lock, stock and barrel.
[Mike Morant collection]