No More Sewer Gas in Sleeping Apartments . . . Flexible Overflow Cover for Wash-Basins . . . [caption title].
[Boston: n. p., ca. 1879]. First edition. Broadside, approx. 8.5 x 5 inches. Illus. Manufactured by William M. Allen of Boston, a promotional piece for a simple patent rubber cover for the overflow in a sinnk to save you from "Death from Poisonous Gases," or otherwise to "protect your Children..... More