could likely be a Diamond T. i had a 1944 diamond T that was issued to the ordinance department in 1945, it was a tandem dual 6x6 wrecker. had pto's front and rear, high, low and a 5 speed. flathead six that started and ran OK. the radiator on mine was crap, but the biggest problem was the water pump was mounted on the outside of the motor and was driven by a seperate shaft with a chain coupler to two gears. the water pump actually had no seal on the shaft of the impeller. i took it all apart, replaced the leather, greased it up good, but after a short time it was pouring water out of a weep hole in the bottom. plugged the weep hole and it held ok. crappy design for a water pump. manual steering on a truck that size makes it tough in tight uneven terrain. sold it on ebay for $400. had way more than that in it.