Mark Provincial Undress CollarA Mark Provincial Undress Collar refers to a specific style of collar that was part of historical military or formal civilian attire, particularly in European and colonial settings. In military terminology, "provincial undress" was a term used to describe a more casual or less formal version of a uniform. Heres a breakdown of what the term refers to: Mark Provincial: "Mark" could refer to a specific regiment or a designation within a military system,