(Medical) Seabury & Johnson, multicolored all-over design showing Award Medallions & Factory Scene on cover bearing 1890, 2¢ carmine tied by "New York, Oct 21, 80" duplex, Extremely Fine; with 2013 P.F. certificate. Scott No. 220  Estimate $750 - 1,000. $0 (Image)

(Medical) Seabury & Johnson, multicolored allover illustrated floral design showing Factory View and Medallion Frame and Logo, franked with 1903, 2¢ carmine tied by 1904 New York, N.Y. machine postmark, reverse with illustrated ad for Benson's Plasters showing Men & Women Wearing Product, Extremely Fine, one of the rarest Seabury & Johnson advertising designs in exceptional condition; with 2013 P.F. certificate. Scott No. 301  Estimate $1,000 - 1,500. $0 (Image)