lot antique white china architectural insulators/standoffs 1920 patent

Huge lot of about 85 old and antique vintage china insulator standoffs. They are made in two pieces for clamping early architectural electrical wiring in the days of bare copper wire and would be great for primitive rustic coat peg racks.

A number of these insulators are marked for a patent in 1920.

These insulators are from an old farm estate where they had saved for many years from an architectural demolition project for use around the farm for assorted jobs like holding radio antennas and electric wires on livestock fences.

They measure about 1 1/8" in diameter and 1 3/4" long over the porcelain. These are dirty from storage and nails are rusty and bent. Some of these are chipped.