Fence insert

Current products on the market include privacy slats that weave through the fence, plastic-shaped cups designed to clip into open cells, and two-part interlocking units which attach together at the crossover of fence wires.

[1] The origin of fence inserts can be traced back to U.S. patent #507,952, filed by Clarence White of Minneapolis, Minnesota in 1893.

[citation needed] The invention consists of "marbles or other loose independent filling pieces" sized to allow placement within the cells of a wire mesh.

The purpose of the invention is described as providing "a convenient and economical means of lettering, ornamenting, or filling" the wire mesh.

[1] Another is to exploit the fence as a site for signage, often providing low-resolution displays of corporate logos, sports mascots or verbal messages.