This was cemented vertically in a Chicago-area interurban powerhouse and Mike Spadafora and I chiseled it out this year. It is 10" wide at the widest and 7.5" wide diameter on the other side x 9-7/8" tall. It consists of a tube cemented inside another tube. There may have been a third tube since one of the wall tubes rescued from the powerhouse had 3 tubes. Beautiful tan glaze. It is unmarked but matches a patent issued to Fred M. Locke. 3/8" x 1/4" chip on the wide edge. Pickup is available at the Crown Point, Indiana swap meet at the end of January or at the April 2, 2022 Wheaton, IL insulator show. $95 + postage. I'll double box this beauty. Postage based on 20 pounds of weight for a 17" x 17" x 16" box sent via FedEx. As an example, too Beverly Hills, CA that would equal $58.68 but certainly less for some place closer ($34.55 to Columbus, Ohio).

Fred Locke Wall Tube, 10" diameter x 10" tall, $95 + postage