Professionally Mounted Vintage Audubon Chromolithograph - Clapper RailProfessionally Mounted Vintage Audubon Chromolithograph Clapper Rail. This print, selected from Audubon's works, was published around 1950 in the USA on cream colored fine matt paper. It contains commentary on the reverse side describing the bird's appearance, habits, geographic range, etc. The print has been professionally hinged onto a specially cut high quality warm white mat, and mounted onto a foam core backing. The overall mount is ready to