(Postal Card Essays) Morgan Envelope Co., Springfield Mass., 1875 Postal Card Essay, 1¢ Black on Card, style with "Write the address on this side : The message on the other" at top and "Morgan Envelope Co. Springfield, Mass." at bottom, bright and crisp, Very Fine. U.S. Post Card Catalog No. UX4E-E  $400. This essay was printed under the Morgan Envelope Company contract, but was not used as the government's final choice. $0 (Image)