41. Trade card for Ayer's Ague Cure, Dr. J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
42. Trade card for Ayer's Ague Cure, manufactured by J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
43. Trade card for Ayer's Cathartic Pills, Dr. J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
44. Trade card for Ayer's Cherry Pectoral, cures colds, coughs and all diseases of the throat and lungs, prepared by Dr. J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
45. Trade card for Ayer's Cherry Pectoral, manufactured by J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
46. Trade card for Ayer's Hair Vigor, prepared by Dr. J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
47. Trade card for Ayer's Pills, Dr. J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
48. Trade card for Ayer's Pills, manufactured by J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
49. Trade card for Ayer's Sarsaparilla, Dr. J.C. Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
50. Trade card for Ayer's Sarsaparilla, Dr. J.C. Ayer & Company, Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
51. Trade card for Ayer's Sarsaparilla, Dr. J.C. Ayer & Company, Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
52. Trade card for Ayer's Sarsaparilla, Dr. J.C. Ayer & Company, Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
53. Trade card for Ayer's Sarsaparilla, Dr. J.C. Ayer & Company, Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
54. Trade card for Ayer's Sarsaparilla, manufactured by J.C.Ayer & Co., Lowell, Mass., undated Creator: Ayer, J. C. (James Cook), 1819-1878 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
55. Trade card for Barrett's Rock Candy & Hermitage Rye, Depot, 45 North Market Street, Boston, Mass., 1877 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
56. Trade card for Barrett's Rock Candy & Hermitage Rye, Depot, 45 North Market Street, Boston, Mass., 1877 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
57. Trade card for Bovinine, the great tonic and restorative fluid food, The J.P. Bush Mfg. Co., Chicago and New York, 1885 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
58. Trade card for Burdock Blood Bitters, Foster, Milburn & Co., Buffalo, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
59. Trade card for Burdock Blood Bitters, Foster, Milburn & Co., Buffalo, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
60. Trade card for Burdock Blood Bitters, Foster, Milburn & Co., Buffalo, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England