I know nothing about them, but came across this from the Richmond History Center
Link takes you to the entry for the vacuum with pics
Object Type: Cleaner, Vacuum
Category: 5: T&E For Science & Technology
Maker: Hoover
Materials: Metal, plastic, fabric
Measurements: 50.25"H x 13"W x 15"D
Silver roller casing; black, bulbous motor casing; brown cloth bag with biege words woven in the bag: "The H Master Deluxe"; electric cord coated with black plastic; hollow black metal handle straight, attached from bottom of body to top; rectangular metal label on roller casing.
[URL unfurl="true"]http://collections.richmondhistorycenter.com/detail.php?t=exhibitions&type=exh&f=&s=163&record=4[/URL]
[ATTACH=full]88020[/ATTACH]
