Below are links to several files on the Winkle Terra Cotta Company.
MORE DETAILED STORIES ON WINKLE TERRA COTTA COMPANY
Story of Winkle Terra Cotta from 1904 BRICK magazine story.
This is an amazing detailed treatment, one that I would trust
more than most accounts. This author had direct access to the top brass, and
knew what sorts of questions he was wanting to ask.