connie, slimline (some models), portable, pixie,handivac, lark, all had the same combo bare floor/carpet tools. crevice tool, duster brush, upholstery brush and smaller floor brush were all shared by these models. also the dial a matic and convertible attahcment sets (sans large combo floor tool) some machines didnt have some attachments , but the all shared the same family of attachments. hoover didnt really change thier attachments until late in the slimline/portable production that started to overlap with the celebrity . the bare floor tools werent as good in the late 70's imho.