There seems to be a misunderstanding here:
- "Vero cuoio" simply means "genuine leather" - it is not a trademark
- there is a consortium of tanneries called "Vero Cuoio Italiano" which uses its own trademark logo (see below - it is a very specific logo, not simply the cowhide shape used universally to indicate leather, as seen above on the auction pic)
- there are other professional associations (including the vegetable-tanned leather one linked to above).
In a word, there are no conclusions on quality that can be drawn from a simple "vero cuoio" stamp on Italian-made shoes. It is not an indication of provenance from a specific tannery, it just means it's leather