81. Trade card for the Emerson Piano Co., 159 Tremont Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
82. Trade card for the Estey Organ Co., Brattleboro, Vermont, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
83. Trade card for the Estey Organ Co., Brattleboro, Vermont, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
84. Trade card for the Estey Organ Co., Brattleboro, Vermont, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
85. Trade card for the Estey Organ Company, Brattleboro, Vermont, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
86. Trade card for The Estey Phonorium, Estey Organ Works, Brattleboro, Vermont, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
87. Trade card for the Estey Piano Co., manufacturers, New York, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
88. Trade card for The Everett Piano, Boston, Mass., 1893 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1893 Institution: Historic New England
89. Trade card for the Ivers & Pond Piano Co., Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
90. Trade card for the Ivers & Pond Pianos, location unknown, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
91. Trade card for The J.E. Lothrop Piano Co., Lothrop Building, Franklin Square, Dover, New Hampshire, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
92. Trade card for the Mason & Hamlin Organ & Piano Co., 154 Tremont Street, Boston, Mass. and 149 Wabash Avenue, Chicago, Illinois and 46 E. 14th Street, Union Square,... Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
93. Trade card for the Mason & Hamlin Organ & Piano Co., 154 Tremont Street, Boston, Mass. and 149 Wabash Avenue, Chicago, Illinois and 46 E. 14th Street, Union Square,... Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
94. Trade card for The Merrill Piano, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
95. Trade card for The S.L. House Co., pianos, Chicago, Illinois, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
96. Trade card for The S.L. House Co., pianos, Chicago, Illinois, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
97. Trade card for the Smith American Organ Company, 531 Tremont Street, Boston, Mass., undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
98. Trade card for the Smith American Organ Company, Tremont Street, Boston, Mass., 1871 Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Date: 1871 Institution: Historic New England
99. Trade card for The Wheelock Piano, manufactory, 149th Street near 3d Avenue, New York, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
100. Trade card for The Wheelock Piano, manufactory, 149th Street near 3d Avenue, New York, New York, undated Format: Postcards/Cards; Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England