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A June, 1947 Advertisement for the Thoro-Kleen

The Greenwich House Thoro-Kleen was a metal pipe system sold with both a metal outer bowl with a briar insert and a full briar bowl. They are from the same family as the Roybrooke, Comet, and Original Gridiron pipes, and parts from all are believed to be interchangeable. The pipes were sold by the Greenwich House Corporation, located in 1947 at 939-M 8th Avenue, N.Y. 19, N.Y.. The pipe set sold for $2.50 in 1947.