Warner Vintage Sanding Block; Early #436 Model; In Usable Condition

Description

The sanding block is in as-found condition.
The sandpaper and cloth rag backing are easily removed. There is a small, loose knot in the wood of one corner of the base block (see photo).
The wing-nut and threaded bolt work perfectly to hold the sandpaper in place.
The block utilizes one-quarter of a standard sheet of sandpaper.
Red painted lettering on top is worn, and reads: "Accuracy
Warner Tools" and "Gets Into Corners and Curves" and "Made in USA."