Clarktor tractor (multiple)

Clarktor-6 tractor (NMoUSAF 05-17-18) 1150

Here are some photos I took of the Clarktor-6 towing tractor on display at the NMoUSAF in Dayton, OH.

The Olympic Flight Museum also has a tractor that appears to be a Clarktor (though I am going to be asking some experts to verify)

Clarktor-6 tractor; NMoUSAF 2018

Clarktor tractor (not sure what model); Olympic Flight Museum 2016