A brown & gold trimmed Uni-Safe safety deposit box sized stockbook. 8 double-sided pages. Book binding system. Pages have 15mm pockets, and the album is 30.5cm x 11.5cm x 1.5cm. You don't see too many of these around anymore, as they were popular during the investment craze of the 1970's, when people would buy stamps as an investment, put them in a stockbook like this and then place it in a safety deposit box.
