Are there any George Pocock shells in existence today?

I just finished reading The Boys in the Boat which might be the best historical non fiction “novel” (per Truman Capote) I have ever read.
If you have not, you owe it to yourself to read it.
Part of the story is the craftsman George Pocock, who builds the racing shells that become known for their quality, beauty and speed. According to the story, Pocock engages not only the physical characteristics of the wood, but a spiritual quality as well, that combines with the skill and determination of the rowers.
Like I said, a terrific story.
Are there any of the hand-made shells that Pocock built for the U of Washington rowing crews in the 30’s still in existence?
Where could I go to see one?