I was lucky enough in the fall of 1999 to be at the home of a former meccano dealer in Calgary. RS models provided meccano to Canada since the 70's. He had long since retired. Most of his stock was gone by now. He said he got a bunch of stuff from Parker Bros. , the Canadian agent for meccano in the 60's and early 70's. They sent everything they had in Toronto to him in Calgary in the early 70's when he became the sole Meccano dealer for Canada. This lot was among them.