i had a quick peek at the rest of the stuff--pretty cool! there were service records, letters, documents, pics, accounts of d-day, guy (a radioman) calling in air support at the very beginning of the battle of the bulge, etc. etc.. overall a large and detailed amount of paper, passbooks, i.d.'s. and more... swords, armbands, and a few holstered pistols as well.
my neighbor is going to be gone for two months and he asked me to keep an eye on his place and water his plants, grab his mail and pay utility bills, so i suppose the buckle was a kind of payment.