I give you Soviet-era spy/military maps of foreign locations (sometimes mire detailed than OS maps): https://www.wired.com/2015/07/secret-cold-war-maps/ https:/

I give you Soviet-era spy/military maps of foreign locations (sometimes mire detailed than OS maps): https://www.wired.com/2015/07/secret-cold-war-maps/ https://www.wired.com/2015/07/secret-cold-war-maps/