Firstly, the square corner tin is about the oldest tobacco tin you can get. The manufacturers still lacked the technology to make rounded corners. Secondly, the tin is old enough for the maker to be id'd as P. Mayo, unlike later tins in which the "P" was dropped. I love the Constellation tins. This was in my collection until I got one slightly better. I can ship it for $5.00 USPS Ground in the US only.