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

You have a pre-war Government Model in good shape.  At least one of the magazines is military and the holster looks like a private purchase of European origin.  The checkering on the trigger is not original.  If your father carried that gun in WWII it was not US issue but one he purchased with his own money.  If the barrel is original to the gun the pistol is worth $3,000+. 

U.S. Army Staff Sgt. Tianna Wilson, with the Georgia National Guard, and Staff Sgt. Brianna Rodriguez-Munns, with the Arkansas National Guard, and another public affairs noncommissioned officer assigned to Joint Task Force-District of Columbia (JTF-DC) in support of the DC Safe and Beautiful mission, provided immediate medical aid to a minor involved in a vehicle-versus-scooter accident in Washington, March 31, 2026. *About 2,500 National Guard members are supporting the mission, providing critical assistance to the Metropolitan Police Department to help ensure the safety of residents, commuters, and visitors throughout the District. (U.S. Army photo by Sgt. Katlynn Pickle)   Note: SSG Wilson wears the Georgia National Guard Joint Force Headquarters–Army Element Shoulder Sleeve Insignia. Not sure when this echelon was considered in "combat". 

Oh the joy of that mandatory class………..

Thanks for posting, EE87! Those are definitely unauthorized!

USAR 99th Readiness Division SSI on podium. U.S. Army Reserve’s 99th Readiness Division SHARP Program hosted a Sexual Assault Awareness and Prevention Month proclamation signing March 30 on Joint Base McGuire-Dix-Lakehurst, New Jersey. (U.S. Army photo by Mr. Sal Ottaviano, 99th RD Public Affairs)

Color guard from 83rd U.S. Army Reserve Readiness Training Center participating in a ceremony. The U.S. Army Reserve marked its 118th birthday at Philadelphia's Independence Hall and Betsy Ross House, enlisting 118 future Soldiers in a ceremony that included a National Anthem performance by Chief Warrant Officer 2 and country musician Craig Morgan Greer, a cake-cutting by Army Reserve chefs, and remarks by Lt. Gen. Robert Harter, chief of Army Reserve and commanding general, U.S. Army Reserve Command. Note: The 193rd Infantry Brigade SSI with Airborne Tab worn by WO2 Morgan. (From his previous enlisted time and service in Operation Just Cause.) (December 1989 - January 1990)    83rd USARRTC SSI

I am familiar with ASSMAN(N)

Last weekend on a cycling trip in the Netherlands, David (EarlyMB) suggested visiting the row of windmills at Kinderdijk... A highly visited attraction in its own right, I remembered a scene from the Masters of the Air series where German 88mm FLAK batteries had been put up against the backdrop of the windmills...   Here's a photo I took last Sunday and a screenshot from Episode 1 of Apple TV's Masters of the Air series...