On 2/8/2022, a set of rubber switches and chicks insulates the 4 kV circuit on the bottom arm. 90 years prior on 2/8/1932, we can see in Joe Maurath's vintage picture post [id=618703900] that there were more interesting pieces insulating these wires. As he often does, Joe also posted a closeup to show the M-2332s [id=618704031]. I am not going to be so gracious with the chickens.