found 2 (30mm) on ebay. at least they let me put 2 in my shopping cart
"Schwalbe Winter Active K-Guard Rigid Tyre 700 x 30"
https://www.ebay.com/p/Schwalbe-Wint...uds/1038363438
again on amazon canada but no size described but they have 3!
https://www.amazon.ca/Schwalbe-Winte...+Tyre+700+x+30