BI-BORAX. Magazine advertisement. 1898. 111/2x151/2 inches. Vaugirard, Paris. Condition B+: tears at edges; tear through top margin affecting image. Paper. The magazine L'Illustre Soleil du Dimanche from April 17, 1898, in which the back cover features a colorful poster design competition for Bi-Borax soap, in which each respondent is guaranteed some sample soap and an illustrated bochure.
