Can you help id this transmission??

[specialtyretail]

Hey guys. Just went and bought a 70 GMC swb to part out. The owner kept talking about the 4 speed transmission. I thought, yeah, a 3 speed with reverse. I get there and see the three shifter linkages. I think, yeah, a granny low four speed. After closer inspection, it has a super short throw and I am starting to think it might be worth checking into a little closer. I know the pics suck, it is still in the truck. Any help would be appreciated. Thanks, Fred.