I have a 1937 colt official police for sale. It was sold to the U.S. customs office. I think the customs office only used them for 10 years or so and total number might have been 2000 or so. I’m no expert on the history of these guns. It had some timing issues but I sent it to Frank Glenn of Glenn customs in Phoenix Arizona who is only one of a handful of people that can truly restore these to factory specs. He got it all freshened up and it literally has bank vault lock up and perfect timing. Gun is fresh from his shop I haven’t shot it. Asking 600.00 obo