The great "scrub" race - Public domain graphic arts, Library of Congress

Print with two images showing five women of various ethnic stereotypes engaged in a competition using different brands of mops; the woman using the "Eureka" mop outlasting the others. In the top image, one woman says, "No use, she's got a Eureka"; and adds in the bottom image, "I told you so!"
A3875 U.S. Copyright Office.

Caption continues: Throw away your old mop and get a "Eureka" J.R. Drake & Co. Manufacturers. Hollister Building, Buffalo, N.Y.
Attributed to: Sage, Sons & Co. Lith. Print'g and Man'fg Co., Buffalo, N.Y.
Entered according to Act of Congress, A.D., 1870 by J.R. Drake & Co., in the office of the Librarian of Congress, at Washington, D.C.
Copyright deposit number visible through paper secondary support.