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By: American Spawn Company (Saint Paul, Minn.) - Henry G. Gilbert Nursery and Seed Trade Catalog Collection.Edition:Publication info: St. Paul, Minn, American Spawn Company, [1919]Volume: 1919Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Cultivated mushroom Minnesota Mushroom industry Nursery stock Prices Saint PaulBHL Collections: Seed & Nursery Catalogs