Question about Zeppelins – which was the first painted silver?

Been doing some research into the pre-war (Great War) Zeppelins. I thought that all Zeps were painted in silver dope, but apparently not. It appears that the first few were left unpainted – probably to save on weight, so here’s an interesting question: which LZ series Zeppelin was the first to be finished in silver?

Best Wishes for the weekend…

Phil Rhodes