In accompanying photos you can see a military cigarette ration tin and, what I suppose to be, a civilian tin. They are both from my collection and they both are from "The Greys" cigarettes. As can be seen they also both have a comparable marking on the side of the lid. Military one reading "3MB", supposedly civilian one "MB13". Could it be that the "civilian" one is also military (I sometimes read that earlier on in the war there were no specific military tins) and what is the significance of markings like "3MB" (which you find on most ration tins) anyway? Cheers, Ronald.