hi Franklin's 50,
I have also recently started trying to locate information about original tools for a Chevy 1950 1 Ton, presumably the GMC and Chevy would share the same tools for similar tonnage vehicles.
the parts books have yielded some numbers about some of the tools
http://www.gmpartswiki.comi did happen to find an image of 3682420 tire IRON for ALL (exc. 1/2 ton) , it is attached courtesy of johnmeissinger via google image search.
you can even read the original paper tag with part number on it.
so far i have yet to find a confirmed photo of the correct jacks for these trucks.
i have a leading candidate jack, it is the right style and age and most importantly, it can go high enough to lift the axle and wheel off the ground

i hope folks on the forums can help us both out
-s