A bit of a repetitive table, but my original intent was to give all the options for possible furs, given that in different parts of the world some furs may be plentiful and therefore preferable for the players.
As well, having a list of fur pelts, with the number that the shop would buy from the players should they decide to do a little trapping, seemed like the best way to go here.
The choices of fur (or skin, in some cases) was limited to those places I had references for. All other furs not on the list are, regrettably, to be treated as the muskrat pelt (the most common). That incidentally doesn't mean a lot of leather types, such as snakeskin or alligator skin ... those things can be found at the Leather Worker's.
Incidentally, the cost of the various coats is reckoned in the number of furs necessary, and those furs in turn are weighed differently (loads of research there). That's why the actual weight of the various coats differs slightly. Something else I should mention would be that the coats listed here have no special tailoring, nor are they especially luxurious as players might imagine a sable or an ermine coat would be. That sort of exquisite tailoring would cost extra. These are coats fashioned primarily for warmth, not beauty.
The wolf pelt, compared to other pelts, might seem a bit dear; I'm afraid that's an influence of the same system that determines how highly prized something is. That is just how it goes.