Wonder Pictures. Made In Germany. To cause the picture to disappear, cover same over with the Gelatine leaf and a new picture will appear in answer to the question.
Germany: [ca. 1925]. Folder Containing Three Illustrated Vignettes & Purple-Hued Gelatin Leaf, Printed Images disappear when seen through Gelatin Leaf and new ones are seen. 8.5 x 6.38 cm, Oblong, Good with marginal tear to illustrated folder, toning, & minor loss to gelatin leaf. Illustrated. Scarce. More