Vintage detachable Radiac Royal Standard collar, probably made around the mid-20th century. This is a classic starched collar, for business or casual wear.
You will need a pair of collar studs to fix this collar to your tunic shirt. These studs are NOT included, but are available separately. (The stud in the photographs is just for display purposes).
Collar size....16 1/2 inches (to fit shirt size 16")
Condition: Vintage collar, unused and in superb condition.