Hard to tell looking on my phone, but that looks a bit like the bloom you get on bridle leather as the oils come to the surface. Does it buff off with a soft cloth?
Hmm, then I'd maybe try rubbing in some leather conditioner and see if that did anything; if not, I might try saddle soap, then a treat with conditioner once dry.
Hard to tell looking on my phone, but that looks a bit like the bloom you get on bridle leather as the oils come to the surface. Does it buff off with a soft cloth?