1938 US Army Models

This photo shows a GPF 155mm and Caterpillar tractor from Filament Fighters, a 37mm anti-tank gun from Roco, and a small pick up truck from Hobby Lobby that started life as a Christmas decoration, until it got drafted.

Filament Fighters are 3d printed using filament, and are HO scale.

Cast trucks, old time Mac cabs.

I have a lot of these with different wheels, this type of spoked wheel with the hard rubber tire is the oldest version.  Later ones have pneumatic wheels and then more off road wheels as the tire technology improved and the Army updated their mobility.

FT17 tanks, M2 tanks and other vehicles from at least 10 different manufacturers.  The oldest is a car I got at Disneyland at least 25 years ago, and the newest is less than two months old.

The artillery, and tractors, one of the staff cars, the radio tanks and a couple other pieces are Filament Fighters from Fidelis Models.

I have wanted this bulldozer for decades and I finally got one!  This model is so well done it's hard to tell it is 3d printed.

The US Army Coast Artillery used these big tractors to tow GPF 155mm and later Long Tom 155mm guns since most of their weapons were permanently emplaced and Coast Artillery is not generally all that mobile.  These tractors towed Long Toms in combat in North Africa.  That experience showed the need for larger tractors that could carry the crew, some ammunition and provide at least weather protection for the men.