I rarely thumb through these as my fat fingers and occasional clumsiness lead to a tear here and a tear there so this may be a guess, but to my knowledge these are the only "fold-out" booklets. Less paper used to make them screams "rationing" to me, but I am not sure off the top of my head if paper was rationed like other resources. Take a look:

Last edited by RedHat; Mon May 08 2017 10:13 PM.

Looking for rare ephemera - maps, ads, smalls, etc - and the occasional can.