A cranberry (or wine)-colored Model B20 Floor and Rug Conditioner--as Electrolux (Canada) Ltd. identified its triple-brush machines--is currently listed on eBay. According to Doug Smith, who has done extensive Electrolux research, it was manufactured circa 1966 to 1968, so it would match a tank of that color and era. If I owned a tank Model ZB86 or Model ZB88 I would be interested, although the price for shipping to the USA is understandably steep.
Interestingly, the style closely resembles--the later Model 2101s that were sold in the USA in the 1980s concurrently with the Hi-Tech 2100s, L-Es, Diplomats, and Ambassadors.
http://www.ebay.com/itm/Vintage-Ele...633?pt=LH_DefaultDomain_2&hash=item2592d749d9

Interestingly, the style closely resembles--the later Model 2101s that were sold in the USA in the 1980s concurrently with the Hi-Tech 2100s, L-Es, Diplomats, and Ambassadors.
http://www.ebay.com/itm/Vintage-Ele...633?pt=LH_DefaultDomain_2&hash=item2592d749d9

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