41. Letterhead for John Hodgson, hydraulic and general engineer, 131 Dock Street, Newport, Rhode Island, 1890s Format: Ephemera Collection: Ephemera collection (EP001) Date: 1890–1899 Institution: Historic New England
42. Letterhead for The Anson Hardy Cutting Machines, F.A. Hardy, manufacturer, P.O. Box 1765, Boston, Mass., 1870s Format: Ephemera Collection: Ephemera collection (EP001) Date: 1870–1879 Institution: Historic New England
43. Letterhead for the Chase Turbine Mfg. Co., machinists, millwrights, iron founders, Orange, Mass., dated December 29, 1914 Format: Ephemera Collection: Ephemera collection (EP001) Date: 1914 Institution: Historic New England
44. Letterhead for the H.B. Smith Machine Co., machinery and tools, Smithville, New Jersey, dated February 16, 1885 Format: Ephemera Collection: Ephemera collection (EP001) Date: 1885 Institution: Historic New England
45. Postcard for the Betts Machine Co., machine tools, Wilmington, Delaware, undated Format: Postcards/Cards; Photographs Collection: Ephemera collection (EP001) Institution: Historic New England
46. Postcard for The Original Concord Axles, D. Arthur Brown & Co., Fisherville (Concord), New Hampshire, undated Format: Postcards/Cards; Photographs Collection: Ephemera collection (EP001) Institution: Historic New England
47. Price list for the Victor Valve, Little & Smart, Peabody and Salem, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
48. Trade card for A.J. Wilkinson & Co., manufacturers' agents, 184 & 188 Washington Street, Boston, Mass., 1875-1887 Creator: A.J. Wilkinson & Co. Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1875–1887 Institution: Historic New England
49. Trade card for Clapp's Wood Pumps, Clapp Bros., Stow, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
50. Trade card for Curtis & Mitchell, self-inking presses, 15 Federal Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
51. Trade card for Elmes & Tebbetts, machinists and manufacturers of boilers, ships' tanks, steering wheels, Commercial Street, Bath, Maine, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
52. Trade card for Elmes & Tebbetts, machinists, Commercial Street, Bath, Maine, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
53. Trade card for Gorham & Co., printing presses, 299 Washington Street, Boston, Mass., 1876 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
54. Trade card for Ideal Stencil Machines, The Shippers Supply Company of New England, Watertown, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
55. Trade card for M.P. Osborn, saw filer, No. 6 LaFayette Place, New Haven, Connecticut, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
56. Trade card for Seth W. Fuller Electric Co., engineers and contractors, 100 Bedford Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
57. Trade card for Smith & Winchester, manufacturers and dealers in wrought iron pipe and fittings for steam, gas and water pumps, 19 to 37 Wendell Street, Boston, Mass.,... Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
58. Trade card for the Angular Wood Turning Lathe, Locke & Wood, 38 Hawley Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
59. Trade card for The Brown Caloric Engine Co., 57, 59 & 61 Lewis Street, New York, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
60. Trade card for the Consolidated Elevator and Machine Works, 436 Union Street, Lynn, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England