These are
HOOVER VACUUM CLEANER
VINTAGE REPLACEMENT
OUTER CLOTH BAGS
These are Vintage Generic Hoover Replacement Outer Bags made by DVC.
These fit earlier models from Hoover including Models 29, 60, 64, 90, 91 and 913... the Larger Oval Pre-Convertible Vac exhausts... Will not fit the Older Larger Round exhausts... Kind of a Bluish Purple in Color...