Mr. Ashwell of Herne Hill invented the Vacant / Engaged toilet door sign which was then patented today in 1… | Toilet door sign, Bathroom doors, Bathroom door locks
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Privacy Sign, Premium Vacant Occupied Sign for Home Office Restroom Conference Hotles Hospital, Slider Door Indicator Tells Whether Room Vacant or Occupied, 7'' x 2'' - Silver : Amazon.co.uk: Stationery & Office