John Dyer Framed Open Edition Cornish Fine Art Print. 'Mad Dogs and Cornishmen'. Cornwall Art GalleryThis is a museum quality framed and mounted open edition fine art print by John Dyer featuring his famous 'Mad Dogs and Cornishmen' painting. Introducing John Dyer's 'Mad Dogs and Cornishmen' open edition print. This museum quality fine art print captures the lively activity of the river at Falmouth in Cornwall from the beach at Flushing. With sailing boats, ferry boats, and people and dogs filling the beach, this painting epitomizes everything that