$95 unframed, includes certificate of authentication. Map measures 24″ x 26″. Compiled by Christian C. Sanderson; Illustrated by Andrew Wyeth. This map is one of the original 1937 edition of 5,750 printed by Beck Engraving Company of Philadelphia, Pennsylvania, founded in 1897 and inventor of the four-color lithographic process. The original pencil drawing hangs in the Christian C. Sanderson Museum.