So… I bought this for a very good price. It is of course Rattray’s Black Mallory. The Scottish stuff. The tin is one of those fully sealed with cut to open key. It looks like the seal is completely intact. I know what it is and I have no intention of selling it on but I have no idea as to the age of it. I was hoping someone might be able to weigh in and give me an educated guess. Thanks in advance for any help.