Marketing frequently forgets the details.
My double gasketed models came with a rubber disk for the bottom and top of the tube so I can place matches in both ways. This allows a few more to be placed inside.
The original design of this matchcase was done by K&M Keith & Margory (can't remember their last name) products in Idaho about 10 years ago. LL Bean marketed K&M versions for a while then they sold the design to Silva and they have been uncommon to find but available. I would like to track down one of these screwtop models. I may give my Boy Scout shop a call.
Thanks for posting this.
Randy