Worldwide U.S. U.S. Patent Office Cover Collection.
Sale No: 26
Lot No:4074
Symbol:
Cat No:Collection
U.S. Patent Office Cover Collection. Approximately 30 ad covers and additional patent related ephemera, including 1860-70's Scientific American shaded ad covers and a 1863 patent ad cover, others including New England Patent Agency and the Union Patent Investment Co., etc.; condition mixed, a very interesting group. Estimate $200 - 300. $0