Design (King's Crown): The shape features a distinct sweeping arch topped with a cross, commonly known as the Tudor Crown or King's Crown. This indicates the badges date from the reign of King George VI (spanning roughly 1936 to 1952, heavily encompassing World War II), rather than the Queen's Crown used after 1953.

Velvet Backing: These crowns feature original colored velvet cloth backings inset behind the brass frame. Historically, different branches and regiments used specific colors (e.g., crimson/red is standard for many Army units, while a dark blue or purple/faded tone can indicate specific departments, regiments, or navy/air force variants).

Fittings: The back view shows classic brass loop lugs secured with original cotter pins (split pins), meant to slide through the eyelets of an epaulet or uniform collar.