I bought some more original photographs and I found this one. It had a note on the back that suggested it was in Italy in the early 50's. Luckily we can see bumper markings. Also note the odd speakers with the cones removed. I had a lot to go on actually, bumper markings are pretty easy to figure out, but I had never heard of this TRUST.
Handwritten note on the back says, “critique point at Grocle”
“The 351st Infantry was relieved from assignment to the division on 1 May 1947 and served as temporary military Government of the Free Territory of Trieste, securing the new independent State between Italy and Yugoslavia on behalf of the United Nations Security Council. Designated TRUST (Trieste United States Troops), the command served as the front line in the Cold War from 1947 to 1954, including confrontations with Yugoslavian forces. In October 1954 the mission ended upon the signing of the Memorandum of Understanding of London establishing a temporary civil administration in the Anglo-American Zone of the Free Territory of Trieste, entrusted to the responsibility of the Italian Government. TRUST units, which included a number of 88th divisional support units, all bore a unit patch which was the coat of arms of the Free Territory of Trieste superimposed over the divisional quatrefoil, over which was a blue scroll containing the designation “TRUST” in white.”
The section that TRUST troops where in was called Zone A and was absorbed into Italy in 1954 and Zone B was absorbed into Yugoslavia which today is part Slovenia and Croatia.