Caterpillar Tractors and Dozers on the Prowl

Caterpillar tractors work hard at the Tri-State Gas Engine & Tractor Show in Portland, Ind.

A 1924 Holt Model 60 also owned by Dan Voght. Note the hinged lower track rail on the Holt to make riding more comfortable.
A 1924 Holt Model 60 also owned by Dan Voght. Note the hinged lower track rail on the Holt to make riding more comfortable.