21. Advertisement for Hanley Company Inc., Hanley Flatter Glazed Brick, Bradford, Pennsylvania, Boston, Mass., 565 Fifth Avenue, New York, New York, undated, Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
22. Advertisement for Hardy & Company, doors, windows, blinds, weights, cord, 173 Blackstone Street, Boston, Mass., undated Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
23. Advertisement for National Building Granite Quarries Assn., 31 State Street, Boston, Mass., undated Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
24. Alasco Jr. automatic oil heat, manufactured by The Alasco Burner Co., Inc., Winchendon, Massachusetts Creator: Alasco Burner Co., Inc. Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
25. All-important question of the window, by Frederick L. Ackerman, Country Life in America, Doubleday, Page & Company, New York, New York Creator: Ackerman, Frederick Lee, 1878-1950; Doubleday, Page & Company Format: Ephemera Collection: Ephemera collection (EP001) Date: 1922 Institution: Historic New England
26. Ally of good living, Pittsburg-Bungalow Automatic Gas Water Heaters, Pittsburg Water Heater Co., Pittsburgh, Pennsylvania Creator: Pittsburg Water Heater Co. Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
27. Alpha aids, no. 31, published at intervals in the interest of sellers, buyers and users of Portland Cement by Alpha Portland Cement Co., Easton, Pennsylvania and... Creator: Alpha Portland Cement Company Format: Periodicals Collection: Ephemera collection (EP001) Institution: Historic New England
28. Alumatic combination storm and screen windows doors, are manufactured by Aluminum Building Products Co., Milwaukee, Wisconsin, 1948 Creator: Aluminum Building Products Co. Format: Ephemera Collection: Ephemera collection (EP001) Date: 1948 Institution: Historic New England
29. Ambler Asbestos Shingles selection sheet, Asbestos Shingle, Slate & Sheathing Company, Ambler, Pennsylvania Creator: Asbestos Shingle, Slate and Sheathing Company Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
30. American Institute Fair, 1880, presented by L.H. Mace & Co., manufacturers of refrigerators, children's carriages, toys and specialties in house furnishing goods, 111,... Format: Ephemera Collection: Ephemera collection (EP001) Date: 1880 Institution: Historic New England
31. American Standard warm air heating, catalogue A51, American Radiator & Standard Sanitary Corporation, Pittsburgh, Pennsylvania Creator: American Radiator and Standard Sanitary Corporation Format: Ephemera Collection: Ephemera collection (EP001) Date: 1951 Institution: Historic New England
32. Anaconda Copper Roofings, manufactured by Anaconda Copper Mining Company, distributed by Anaconda Sales Company, 25 Broadway, New York, New York Creator: Anaconda Copper Mining Company Format: Ephemera Collection: Ephemera collection (EP001) Date: 1922 Institution: Historic New England
33. Andersen Flexivent Window, one of 7 famous Andersen Windowalls, manufactured by Andersen Corporation, Bayport, Minnesota Creator: Andersen Corporation Format: Ephemera Collection: Ephemera collection (EP001) Date: 1959 Institution: Historic New England
34. Andersen Windowalls, detail catalog no. 542, Andersen Corporation, Bayport, Minnesota Creator: Andersen Corporation Format: Ephemera Collection: Ephemera collection (EP001) Date: 1954 Institution: Historic New England
35. Announcing new shingle beauty, fadeless colors at a low price in Johns-Manville Rigid Asbestos Shingles, Johns-Manville Corporation, Madison Avenue at 41st Street, New... Creator: Johns-Manville Corporation (1926-1981) Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
36. Announcing standard thermopane sizes for picture windows, Libbey-Owens Ford Glass Company, Toledo, Ohio Creator: Libbey-Owens-Ford Glass Company Format: Ephemera Collection: Ephemera collection (EP001) Date: 1946 Institution: Historic New England
37. Architectural granite, the noblest of building stone, Maine & New Hampshire Granite Corporation, North Jay, Maine; Redstone, New Hampshire Creator: Maine and New Hampshire Granite Corporation Format: Ephemera Collection: Ephemera collection (EP001) Institution: Historic New England
38. Architectural Terra Cotta Brochure Series Volume Three, The Store Creator: National Terra Cotta Society Format: Books; Ephemera Collection: Ephemera collection (EP001) Date: 1915 Institution: Historic New England
39. Artistic roofs that endure, Asbestos Shingle, Slate & Sheating Company, Ambler, Pennsylvania Creator: Asbestos Shingle, Slate and Sheathing Company Format: Ephemera Collection: Ephemera collection (EP001) Date: 1920–1929 Institution: Historic New England
40. Automatic heating and air conditioning equipment, Gar Wood Industries, Inc., Air Conditioning Division, Detroit, Michigan Creator: Gar Wood Industries Format: Ephemera Collection: Ephemera collection (EP001) Date: 1936 Institution: Historic New England