Hello Chief:
My pals Turnerriver and Kevin are both correct. The holster in question is the standard belt holster issued in WW2 for use by the Navy, Marines and Coast Guard. These holsters were manufactured by Brauer Bros. of St. Louis. They are almost always unmarked, although a very few have been observed with markings on the back side that are thought to be legit. These holsters have been reproduced but they are easily detected.
These holsters were not intended for civilian use during WW2. If your Victory is a revolver that shipped under DSC authorization then it likely did not get mated with this holster until after the War.
That lanyard was designed for use with the M1911A1 pistol, not the Victory. I am not sure exactly what lanyard was intended by the Navy for the Victory, and the Navy does not seem to know either. The Bureau of Ordnance Catalog for July 1945 lists a number of accessories for the Victory Model, but not a lanyard. Most contemporary pics of servicemen in WW2 armed with the Victory do not show lanyards, and those few that do seem to show several different types in use.
The one you show appears to be legit but frankly the pics are too fuzzy for me to offer you any certainty.
You should be aware that the Hickok marked lanyards have been reproduced. Check out the International Military Antiques site and you will find that an imported reproduction is being sold by IMA for $9.95.
U.S. WWII .45 ACP 1911 Lanyard- Marked Hickok 1943 – International Military Antiques
Here is what a legit one looks like with its original packaging. (Photo credit to Steve1987)
I hope that information is useful to you.