Squadron Products/Encore Models 1/48 F-84F THUNDERSTREAK

That one sounds interesting.  I wonder what documents he was delivering.  

For a good acrylic primer check out Stynylrez brand. You can view the appliction on Will Pattison's you tube vid episode 54.

Yes sir, 

I have a bottle on my bench.  I'll be trying it on my next project.  It's a NMF Mig-21.  I'm looking forward to seeing how it applies to the model, but I'm still working construction at the moment.    

Probably classified, as it was during the height of the Cold War.