Paul

West Kent Militia had facings referred to variously as grey, Kentish grey or stone-grey. It was apparently unique to Kent Regiments (East Kent Militia had similar facings). "Kentish grey facings were worn by the Militia of Kent from the remotest times...."

See perhaps, Historical records of the West Kent Militia: with some account of the earlier defensive levies in Kent. By J. Bonhote. Hudson & Kearns, 1909.

Good hunting.

Ron