Concours d'Affiches du Bi-Borax Oriental philip williams posters polish posters and a small piece missing

and a small piece missing at bottom border

poster linen backed

Title - The Open Museum Artist - von Arx/Olpe Basel

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Concours d'Affiches du Bi-Borax Oriental philip williams posters polish posters and a small piece missing"Concours d'Affiches du Bi Borax Oriental Jugez! R. S. V. P. Quelle est la meilleure affiche? Toute personne qui rpondra avant fin Mai 1898, recreva Gratuitement en chantillon de Bi Borax Oriental et une brochure illustre" English translation: "Bi Borax Oriental Poster Competition Judge! R. S. V. P. What is the best poster? Anyone who answers before the end of May 1898 will receive a free sample of Bi Borax Oriental and an illustrated brochure."