ContractorThe Allis-Chalmers HD-15Contrafed PUblishingSeptember 7, 2022November 21, 2022 by Contrafed PUblishingSeptember 7, 2022November 21, 2022 One of the last GM-powered track type tractors offered by Allis-Chalmers, the HD-15 was also a top performer and paved the way for the subsequent...
Classic MachinesForgotten companiesForgotten companies: IsaacsonContrafed PUblishingJuly 24, 2017June 18, 2023 by Contrafed PUblishingJuly 24, 2017June 18, 2023 Back in time when the track type tractor was still considered a new tool for earthmoving, there were dozens of companies offering attachments to outfit...
Allis-ChalmersFirst GearModel CollectorThe Allis-Chalmers HD-21 tractorContrafed PUblishingMarch 23, 2016August 16, 2022 by Contrafed PUblishingMarch 23, 2016August 16, 2022 ...