This auction is for an Antique or Vintage Brass Pay Toilet Door Lock made by Lockerbie & Wilkinson Tipton Locwil. I believe this came from the UK originally.This lock has a knob that turns to show vacant or engaged small signs when used. I don't know if it works or not as I could never find the proper coin it takes to test it out. There is no key for the lock box, there are a bunch of screws and screw type rods that were in the back of this when we bought it long ago. The back comes off by removing 6 screws. This is very heavy brass, weighing about 6.5 pounds. I haven't cleaned the lock but I have no doubt that it will clean up nicely. There is some paint around the back edge which should also come off. The lock measures 13" x 1.25" x a bit over 3.75". Please ask any questions before bidding. Buyer to pay USPS Priority Shipping with insurance. Please see auction details for countries we will ship to.