Business floors of Armstrong's linoleum : for offices, public buildings, banks, hotels, stores, restaurants, theaters, libraries, churches, schools, hospitals, rest rooms, club rooms, etc. (1924)
rmstrong's Linoleum UNTIL recently, the chief test to determine the maturity of linoleum was the "educated thumbnail." A workman pressed a practised thumbnail into every run of linoleum to see if the piece of goods was sufficiently seasoned to stand up under the wear of actual use. Naturally this… … and any perceptible indentation will disappear. Fig. 2—The Abrasion Test Page Forty-seve n
