Dimension
Charlie
I have a TOL Dimension 1000 S3283 from about 1987, I paid $20 for it at the flea market. I agree its one of THE BEST canister vacuums ever made, quiet, good airflow, lots of features, and decent filtration.
Its one drawback is its size, its like a Microwave oven with a hose on it.
The TOL Dimensions had issues though, namely the PCB controls were dodgey and expensive to replace out of warranty.
I'd go on record as saying the Dimension canister was the best cansiter Hoover ever made.
The bags you probably have are sensotronic/Electronic 1000 bags from the UK
I have a couple laying around, will have to try them.