That second transmission is probably a Brownie, an auxilliary transmission with an under, direct and over. They were common at one time and increase the usuability of an old truck quite a bit.
1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more... It's true. I really don't do anything but browse the Internet looking for trouble...
