Short on the evolution of building good, marketable fences. MS two men handle wood to make a fence; one hauls pieces of tree trunks, one hammers pieces with a huge mallet. CU mallet pounding against the wood, VO says in 1889. Shot of an old-fashioned fence zooms in on the two men adding rails to it. MS of man at table eating bread and looking at book. Shot of same man weaving wire between fence stakes, at ease. VO that this became the Keystone fence. CU him tightened weaving wire with other man. Him and other man (son) making fence on machine; CU on pliers tightening on the keystone fencing machine. Transitions to shot of then-modern fencing on a machine belt.