Stylized skull tattoo.
"AN AMERICAN CIGARETTE LIGHTER" - I might be misremembering, but were all GIs issued with Zippos in WWII? I think Spencer Tracy insisted his character use a Zippo in "Bad Day at Black Rock" for that reason.
"ONE OF THOSE BRACELETS" - A BOOSTER CUFF ??
"EVERY SECRET U.S. WEAPONS PROJECT" - like Bat Bombs, or Project Pigeon.
Stainless steel forceps.
"PLASTIC?" - In 1933, polyethylene was discovered by Imperial Chemical Industries (ICI) researchers Reginald Gibson and Eric Fawcett. I hope someone says "long-chain monomers" at some point in this story.