Sigh - ok - I'm not a fan of polishers or shampooers but here's the Candian list. The new shampooers/polishers usually came out 6 months to a year after the matching machine as they didnt sell as many and, consequently, had alot of the old stock to get rid of.
The first Candian polisher was the BA5 - chrome with dark reddish brown trim and grey hilight. It was sold from about 1950-55.
The second one was the BX5 - same machine but chrome with brown trim and tan/yellow hilights to match the ZB57. It was sold from 1955 - 58.
The third one was the B10 - red with cream trim to match the 80 series machines. Its run was 1958 to about 1965. This machine introduced the concept of using a polisher as a shampooer with the addition of a shampoo tank.
Around 1965 came the first radical change - the B20. Also red and cream colored it featured a retractable cord, and floding handle as well as a very modern design which was to survive till the late 1980's. Its run lasted till 1968 when the B21 (in green) replaced it.
From there on the models were:
B22 - tan and white (1973-1975)
B23 - yellow and white (some may be found in gold as well to match the super J - which was sold while our vacuum factory was on strike) (1976 - 1979)
B28 - chocolate brown and white (1979 - 1983)
B50 - Almond and tan (1983 - 1985)
2101 - Taupe and Grey (1987-1989)
2101 - Jadestone blue and Grey (1985-1987)
Special Edition 2101 - wine and grey - mall show special machine - no cord reel(1988 - 1990)
These dates are all off the top of my head so I may be out by a year on some. (I only worked on them - didnt collect them)
Doug