But. U.S. B. F., 1917-18. PLATE XXXV. 
Tic. 1.—The churn used in polishing buttons. Fic. 2.—The tumbler employed for buffing blanks or buttons. (See 
(See p. 77.) Pp. 74.) 
Fic. 3.—A cutting machine of simple type. (See Fic. 4.—The shaker in which the buttons receive the final 
Pp. 71.) polish, (See p. 77. 
Fic. 5.—The belt grinder employed to remove the backs from blanks and bring them to desired thickness. (See p. 74.) 
