For sale here is a Rare 1991 Mercury Phone Card Payphone from one the London Underground Tube Railway Stations Which LCD Display works with correct current And same for phone card and credit card readers and has working lock with key and comes with spare circuit boards and card reader motor and Mercury Phone Cards But wires on spare used Mercury Circuits are plasticising so rubber gloves should be worn to touch the spare circuits, And would prefer collection to hand over such an incredibly rare English London area Mercury Payphone, But able to post, Any questions thoughts knowledge on this Payphone then please let me know