"Historical State of Jefferson Barb Wire Collection" Wreath. This wire features a Joseph F. Glidden patent, dated November 24, 1874. This wire is called "Glidden's Two-Point Barb with Very Light Gauge Lines and Barbs" by collectors. (ref. Hagemeier). This wire features two twisted together line wires. The line wires and barbing wires are much lighter than normally used. Barbs are two pointed, made by wrapping a round barbing wire twice around the round line.