This morning I received a link from Geoff Tweedale to material that has some potential for historical info. The magazine is a Hardware and Metal Merchant published in Canada. It is available on archive.org. The search term is Hardware Merchandising. A bit strange but that's what it is. Search results are here: https://archive.org/search.php?query=Hardware+merchandising+AND+mediatype:texts&page=1 I am posting a sample ad from one of the issues. It is a Shurly & Dietrich ad from 1906. Enjoy!