The San Venanzo was created for the 2011 collection. It can be made using the 051 Last, giving the toecap a round look, or on the 049 Last making the toecap area more angular. See the blog for more details.
"The 2 Darker Bergamo's that are pictures are made using the same shoe form/last as the BACCHIGLIONE, giving the shoe a new wider rounder toecap."