Presumably from enemy occupied Europe - sent to Berwickshire and then to Folkestone, Thomas Cook perfin stamps, censor marking. If you wish to see scan of reverse, please ask and we would be happy to send to you. The item "GB 1918 WWI Thomas Cook Undercover Forwarded Mail, with Perfins" is in sale since Monday, October 12, 2020. This item is in the category "Stamps\Great Britain\Covers". The seller is "albionstamps" and is located in Dallas, Texas.This item can be shipped worldwide.