Gyasih: someone posted this as a guide earlier in this thread. I don't think it's comprehensive - I've seen black, grey, burgundy and olive suede too recently. But it's a good place to start. Otherwise, I guess just email them.
Based on the chart above and my photos
I numbered mine 1-8 in parenthesis
Red Cognac (2)
Brown (8) Edited by gyasih - 2/9/13 at 7:31am
However, these are all designed by Roberto Ugolini so his workshop most likely has very similar pairs available. Then again, there are so many shoemakers around the globe that unique models are hard to come by. For this you would have to bespeak a pair or buy MTO from a maker who offers heavy customization.
I agree that 112 is nice. So is 120.
But I really think Vass needs a better photographer. Period.
The insteap doesn´t vary between models on the same last when they are new, so this must be because of the photos.
If you have the same last you should have the same fit but the fit also depends on what model and leather you are using. A full brouge wil fit tighter than a cap toe because the brouge will stretch less. If you take the same model in suede this will stretch even more and give a different fit.