Quietness etc...
Charles..
Yep Iknow what you mean about the motor- its also much quieter than you imagine it should be(The fact that its only 325W obviously has a lot to do with that). The bag is indeed huge- see the pic below, I forgot to post it lol!.
David
This style of Hoover ran from the early 50s to approx 1989 in the UK. There are 3 models- excuse the non eacct dates

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912- 1950ish to 1965 ish. Black painted motor hood, headlight, old style handlegrip(think the black chunky style with HOOVER embossed vertically). Bag grey with HOOVER in red lettering in the usual vertical fashion. Bumper of the usual type. This would be basically your 91??. This was a earthed/grounded machine.
912A 1965 ish to 1978. The same with the exception of the motor hood was now the same colour as the base and the newer plastic handle grip and new style switchplate was fitted. Although the model number didnt change I believe there are 2 versions of this, the difference being the use of imperial/metric screws etc. Also I believe late examples are double Insulated as opposed to being earthed- this would be your 913, of which yours is a VERY nice example

- I love the bag design of the US versions!.
U7008 1978ish to 1989ish. As the pics, with the exception of very early examples that had a black bag and the Hoover roundall and Heavy Duty were orange. This is a double insulated model and dosent need Earthing- if you look at the rating plate of mine the square within a square shows this. -This would be your U7037.
The bag is correct and original to this example- its quite thick and pretty stiff. See pic for its inflated state lol!
Seamus
