Unknown2019-03-072019-03-071966-05EPM-072-10-012http://hdl.handle.net/20.500.11867/157482 sheets 8.5 x 14 inch. Typed recto and verso. Verso of second sheet has a typed label affixed to it and is stamped.New information on shipping and delivery, also, problems with shipping Modo-Gloss in winter, suggestions for cleaning up after using Modoclay, finishing Modo-Coat, tips for using Modo-Gloss, and experimental Modo-Stone.Envelope