Back of the Book Covers, 1885-1929. Group of 15 items, including early Oct 1885 usage E1; lovely 1929 color illustrated advertising for "Hi-Power Shot Shells" showing duck in flight; 4¢ Parcel Post perfin on cover; nice Specimen del on 1903 usage with "Southern Illinois Penitentiary Warden's Office" corner card; other Specimen del & Dues covers; mixed condition, please inspect. Estimate  $100 - 150. $0