Not 100% sure but this has got to be a riverine sailor with the 521st River Patrol Section as they wore a similar colored triangular patch with the wording of TUAN GIANG at the bottom (see photos).    

I found these late this afternoon after my very good friend sent me after them.   At 3pm they were sitting for sale for approximately $25 each.   Any help pricing them please    I know the M19B has a steel casing and saw an online price of $275.   Is that even accurate?   Educated guesses are welcome    Thank you for your help.

AND ...  underway -  short sleeve shirts, long sleeve shirts, both with or without jackets.    Deck apes in short sleeves, snipes wearing jackets in 90ºF weather on the flight deck beause it 25ºF - 40ºF colder than the engine rooms and they were freezing their patooties off.

One of my friends from the Legion and a retired teacher was a tanker with a Sherman talked about the battle at Bitche…. He referred to himself as a Bitche from Bitche ✔️💯I know there is a SSI referring to the statement.   Kurt

A blacklight will aid you in determining whether the patches are period correct. If correct, the thread will not glow under blacklight. Typically, you want to look at the edges of the patch and lighter color threads for reference. You can get a nice handheld one on amazon fairly cheap. I like the looks of the 101st, 17th, and 3rd army. The 82nd, I would want to see under a blacklight

As a matter of curiosity, did you sew 2 patches on the right sleeve of the flight suit, or did you purchase it that way?

Thank you! Yes, I’m fond of them - and ‘desk displays’. Adds a splash of of colour to things.

Nice, I like footlocker displays.  Well done.

I loved these figures that came with kit, after I got rid of the tank destroyer whe when this one got damaged in a fall from a stand in like 1976, I kept the figures, I used them in other long ago projects.  

killer display and items!  I can appreciate how much time, money and effort went into this.  Thank you for sharing!