Very sorry to see this, My Condolences to his family and his Forum Friends.

That is a very nice display. I like it! 

Wax? why not use the scotch guard water proof spray? I have the Vietnam era canvas, the rubberized and the nylon. The nylon stinks! Everything falls out of it when opened.

The blade reminds me of a modified fighting/utility knife, (1219C2), from one of the manufactures.  If it's theater made, I'de ask; which theater and where & when.  It seems very unique and I suspect it was done more recently than WW2.  It would be nice to know the back story of this knife.  It's a cool knife, but without real provenance I'd keep it in my curiosity part of my knife collection. 

Nice finds!

That is too cool! Back in my day a fire truck was as good it got.

T123 gun

It is dated 1954. The markings say it belongs to a m123 gun.

I switched gears and went back to working on mounting the barrel. Try as I might, I could not get the barrel lined up correctly. I hated to do it, but I decided to grind away at the barrel threads on the front receiver section. The piece was ruined anyway and they are readily available, which soothed my conscience a bit.  Bottom line, things now line up. It’s a little bit loose, but that is easier to fix than too tight. I hope, anyway. 

Very cool ! Some rare stuff in that grouping.