Thanks for the size of the 4846 SIZE 3. There is a set of three on eBay but the seller did not list the bit size. Strange how they were not the same bit sizes as the 47xx counterparts. Obviously different applications. Don pointed out those and the 4861 on eBay to me earlier this morning in a PM. Funny thing is, the guy selling the bits is 30 minutes away from me and I have zero doubt they also came out of Lakehurst Naval Air Engineering Station.
Thanks. Didn't even register with me at the time! For others, link to MR. X's post
here.
Ironically, or tellingly, I see that one of the Phillips bits you have is a Deco (if I am reading that marking right). I found a Deco 9/32-inch knobby stubby spinner with the Plomb screwdriver bits. Also an unmarked wingnut socket, as noted above, with a "Hole-Tight" hole.
Running Empirical Tally:
4844 Screwdriver bit 3/16", black oxide (Lugz, Rubicon, MR. X)
4845 " 9/32" black oxide (")
4846 " 3/8" black oxide (Rubicon, MR. X)
4860 Short extension, black oxide (MR. X)
4861 Long extension, plated (eBay)
4866 Flex handle, plain steel (Tin Medic via Don)
4885 Sliding Tee, black oxide (MR. X), plated (AA)