Oh thank you sir. Wouldn't have picked that up. 

Thank you all for the great feedback. I now have some ideas of what I can get for the pistol. Yes, I agree it is a sentimental piece from my dad but there is no one in my immediate orbit I can leave it to. My wife and son do not want to deal with the gun. So it will move on to a someone who appreciates and wants to preserve the pistol.

The bullion hat badge is Chinese Civil War era (1945 - 49).  The visor hat should have sunburst buttons.  

I have been looking through the morning reports. Interestingly enough, it looks like Gerhart was a member of the 603rd Camouflage Engineer Battalion before transferring to the 1118th Engineer Combat Group.    It seems he made it to Guam with the 1118th, but was evacuated on October 26, 1944 and sent to the 76th Station Hospital. He was sent to the 54th General Hospital and eventually made his was to the 27th Replacement Company on December 27, 1944.   It seems that the US Archives has not officially uploaded the morning reports for 1945 so the trail has run a bit cold for now. It'll be interesting to see where he ended up once he made his way back from the hospital.     I assume that the 1943 date on the bag means that this was issued to him after his hospital stay.  

Common re-strike most likely  from "he who cannot be named" ( in my opinion)

It's probably this contract:   International Shoe Co, Kirksville, MO N-1 Field Shoes NXSX 83646 Start date November 1944 End Date March 1945

Try the sister forum. https://www.worldmilitariaforum.com/forums/index.php

Very cool!  Can you get a clearer shot of the wing markings?

A red flag is displayed on merchant vessels and warships during the transfer of dangerous cargo, fuel/ammo.     W

That's RDF. ERDL has a lighter color. And generally Vietnam era uniforms have slanted pockets rather than vertical.   Wade