Tractor Testing; Drawbar Testing; Oliver

Unidentified Oliver tractor (possibly the Oliver 60) during a drawbar test. The Adams test car and a Massey Harris 55 load tractor are being towed on the dirt track adjacent to the old tractor test lab building. Note the crankshaft revolution counter on the front of the tractor and the engine temperature measuring device on top of the hood. The driver Al Brhel could be Alvin (Al) Brhel