1. Trade card for the Bay State Fertilizer, manufactured by The Clark's Cove Guano Company, New Bedford, Mass., 1886 Creator: Clark's Cove Guano Company; Clay & Richmond Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1886 Institution: Historic New England
2. Trade card for the Bay State Fertilizer, manufactured by The Clark's Cove Guano Company, New Bedford, Mass., 1886 Creator: Clark's Cove Guano Company; Clay & Richmond Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1886 Institution: Historic New England
3. Trade card for the Bay State Fertilizer, manufactured by The Clark's Cove Guano Company, New Bedford, Mass., 1886 Creator: Clark's Cove Guano Company; Clay & Richmond Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1886 Institution: Historic New England
4. Trade card, grown with Williams, Clark & Co.'s high grade bone fertilizers, New York, New York Creator: Williams, Clark & Co.; W.J. Schaufele Format: Postcards/Cards Collection: Ephemera collection (EP001) Date: 1885 Institution: Historic New England
5. Trade card for the Bay State Fertilizer, manufactured by The Clark's Cove Guano Company, New Bedford, Mass., 1886 Creator: Clark's Cove Guano Company; Clay & Richmond Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1886 Institution: Historic New England
6. Business card for Ezra E. Adams, with Bowker Fertilizer, 43 Chatham Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
7. Business card for Ezra E. Adams, with Bowker Fertilizer, 43 Chatham Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
8. Business card for Ezra E. Adams, with Bowker Fertilizer, 43 Chatham Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
9. How to make house plants bloom, by Prof. S.T. Maynard, Bowker Fertilizer Co., Boston and New York, 1879 Format: Ephemera Collection: Ephemera collection (EP001) Date: 1879 Institution: Historic New England
10. How to raise good crops on a New England farm, Russia Cement Co., Gloucester, Mass., 1898 Format: Ephemera Collection: Ephemera collection (EP001) Date: 1898 Institution: Historic New England
11. Read Fertilizer Co., phosphate fertilizers, Syracuse, New York, undated Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
12. Trade card for Bowker Fert'z Co., food for flowers, Boston & New York Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
13. Trade card for Bowker Fert'z Co., food for flowers, Boston & New York Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
14. Keystone to success in farming, the liberal use of the Read Fertilizers, Read Fertilizer Co., Syracuse, New York Format: Postcards/Cards Collection: Ephemera collection (EP001) Institution: Historic New England
15. Two pieces of string, Bowker Fertilizer Company, 43 Chatham Street, Boston and 27 Beaver Street, New York Creator: Bowker Fertilizer Co. Format: Objects/Artifacts Collection: Ephemera collection (EP001) Institution: Historic New England
16. Hovey and Co., importers and dealers in seed, 53 North Market Street, Boston, Mass., 1850s Creator: J. Mayer & Co. Format: Prints Collection: Prints and engravings collection, 1830s-1920s (GC002) Date: 1850–1859 Institution: Historic New England
17. Trade card, The Currie Fertilizer Co., Louisville, Kentucky Format: Postcards/Cards Collection: Trade card albums collection (EP003) Institution: Historic New England
18. Wheeler and Sheldon, high grade fertilizers made from blood, bone and meat, Rutland, Vermont, 1892 Format: Ephemera Collection: Ephemera collection (EP001) Date: 1892 Institution: Historic New England
19. Ammoniated Pacific guano, Geo. Davenport & Co., selling agents, 145 Milk Street, Boston, Mass. and John O. Baker & Co., 131 Pearl Street, New York, New York Creator: George Davenport & Company, Geo. C. Rand & Avery, and Joh O. Baker & Company Format: Ephemera Collection: Ephemera collection (EP001) Date: 1865 Institution: Historic New England
20. Better vegetables from your own garden, Vigoro complete plant food for lawns gardens, flowers, shrubbery and trees, Swift & Co., Detroit, Michigan Creator: Swift & Co. Format: Objects/Artifacts Collection: Ephemera collection (EP001) Institution: Historic New England