False-collar

The false collar is a detachable collar fastened by two metal studs, one attached at the front and one at the back to hold the collar to the shirt, using a false collar on a shirt means the shirt can be washed with no need for the starched collar, which needs special washing, to be washed.

External links: [[1]] http://www.ravistailor.com/customtailor/A_General_History_Of_Detachable_Collars_On_Custom_Made_Business_And_Formal_Shirts.htm