Back in 1903, Sears, Roebuck & Co. had a complete catalog of windmills and windmill supplies that one could order by mail. They were marketed under the Kenwood name. This catalog included accessories such as tools, pumps, heating tanks, pipe fittings, and more.

You can read the entire catalog – A Catalogue of Windmills and Supplies – on the Internet Archive.

Original text from this page:

ILLUSTRATION No. 35
Showing our No. 32N1452 Regular Pumping Windmill Outfit, price, $37.15, consisting of an 8-foot Improved Kenwood Galvanized Steel Pumping Windmill and a 40-foot Improved Kenwood Galvanized Steel Regular Pumping Windmill Tower. The best height of tower under ordinary conditions. Price does not include pump or tank.

($37.15 in 1903 = $1279 in 2023.)