Fine earthmoving equipment

Here's the 1974 Euclid R50 and a much newer version (90s) of the same dump truck. These were made very durable and could go about 9000 hours at a time before major repairs. 50 stands for number of tons put in the truck. Euclid also made a bottom dump in 1965 with 63 or 70 ton capacity. Yours truly saw these still working as of the late 1990s. Probably a few still around having been rebuilt 5 times or so. They came in yellow, pea green, and a dark green. The engines were often Cummins or Detroit Deisel 12 cylinder. Some dump trucks had two engines to run the same vehicle. They had about 100 gallon gas tank capacity.

Also here's the Cat 980 wheel loader and Cat D-11 dozer. This wheel loader may have been one of the most durable and best ever made. Bucket capacity around 4-6 cubic yards.

Finally, here's a couple of crane power shovels. Bucyrus Erie was a famous name for many years.