Don't you have small feet? At 44, Twe is verging on large sizes. I look for a 46 or 47. The large sizes rarely come up and when they do, be ready to spend some money. One guy has been unloading a bunch of Sidis in 46 and 47 but I find them a bit ugly.

Twe, you probably already know this but these are my key word search terms:
vintage cycling shoes
vintage bike shoes
leather cycling shoes
leather bike shoes
detto shoes
detto pietro
duegi
nalini