I came across this odd thing... apparently it's a conversion from a stock bulldozer, and is used to harvest saplings:
https://www.homemadetools.net/forum/1950-allis-chalmers-bulldozer-converted-tree-harvester-photos-72948 (https://www.homemadetools.net/forum/1950-allis-chalmers-bulldozer-converted-tree-harvester-photos-72948)
Great find Ray! If someone had built that model, no one would believe it had a prototype!
Volker
Really extraordinary, Ray. This thing would be worth to be rebuild as a model. I'll put it on my to-do list
Bernhard
Here's another one made by International Harvester circa 1944:
https://forums.yesterdaystractors.com/viewtopic.php?t=777593 (https://forums.yesterdaystractors.com/viewtopic.php?t=777593)
Also if you search "bare roots tree harvester" on YouTube you can find a couple videos of a modern version in action.