Well, this model was the 'stencil' [aka store] brand of that era, so the red air filter could well be correct. This machine does look very original, but the brand decal is missing. So it could well have been a store brand originally. Six o'one / half a dozen of t'other, really.
Mayfair and Barclay were the brands that Victa put on these models, if the retailer didn't specify their own label. Or they didn't place a big enough order to get the 'own brand' option.
