7 Keys to Baldpate by Earl Derr Biggers 1913 FIRST EDITION Skeleton Key Cover

7 Keys to Baldpate by Earl Derr Biggers 1913 Blue Cover Embossed w Key Outlines Copyright 1913 Dobbs Merrill Multiple black and white prints(?) see photos for some of them Braunworth & Co Bookbinders and Printers Brooklyn NY cool antique book, decent shape but there is some discoloration, please see the photos the cover has an embossed pattern of 7 antique skeleton keys