I saw a post some time ago (not on B&B but I dont remember where) about a Gillette prison model safety razor. It required some type of key to open to remove the blade. I have not seen any pictures or been able to find much information about these. I'm sure there is not much interest since it would be a hassle to use. However, since I am in the business of tracking down the wretched and revoking freedom I thought it may be a cool addition to the collection. Any info would be greatly appreciated.