Here is a scarce item to locate from the
1930's era.
It is a STATIC CLEANER for "picking up lint and dust from all fabrics and upholstery."
Manufactured by George H. ERB & SON of East Greenville, Pa, Sold under the 'SUP-ERB' tradename.
The early hard plastic device is 7" long, 2.75" wide. Ribbed on the underside. I do see some separation from the top and bottom.
Two cleaning tools still are present. The original box has 1 missing end tab.
All said, perhaps you would like to add this early piece to your Haberdashery or clothing collection as an accessory.
Thanks for looking !