Lot 1131
(Medical) Seabury & Johnson, multicolored all-over illustrated design showing Factory View and Benson Plaster Products on cover bearing with 1898, 2¢ carmine tied by "New York, N.Y. May 28 '99" machine postmark, reverse with multicolored illustrated Benson Plaster Facsimile; slight edgewear, Very Fine and choice.Scott No. 279B Estimate $600 - 800.