Since the AAF (Army Air Force), which was an organization under the jurisdiction of the US Army, was promoted to USAF (US Air Force) in September 1947, the trousers Belt Color was changed khaki to AF Blue. Regarding the Buckle / Tip, there was no change for the field trousers belt, and only the dress was revised from gold to silver color. Made by VANGUARD, which has been known as a trousers belt supplier since WWII, it is exactly the same type as the one delivered to the US Air Force.

Manufacturer: VANGUARD
Belt:
• Color: AF Blue
• Material: Cotton 100%
• Width: 1 1/4 inch (32mm)
• Thickness: 3mm
Buckle:
• Type: Box
• Material: Brass
• Finish: Plated in Nickel Silver
• Marking: "MADE IN USA" & "SOLID BRASS"
• Measurements: 4.8cm x 3.6cm (W x H)
End Chip:
• Material: Brass
• Finish: Plated in Nickel Silver
• Width: 1 1/4 inch

Note) The length regulation of the trousers belt in the US military seems to be that the belt end is about 1 inch (about 2.5 cm) from the 1st belt loop when worn. Please cut it to the length you like and use it. You can easily open it by inserting a flat-blade screwdriver into the gap between the buckle and belt end.