JF Ptak Science Books
I found this item today out in thye warehouse, mixed in for some reason with Hitler Jugend pamphlets and many issues of the 19th century Archiv fuer Anthropologie, just completely out of place. It is an accordion fold multiple panel oversize postcard, I suppose, an advertisement for a meeting of the Rotary Club of Birmingham, Alabama, and probably for 1917/1918.
Which is a detail of the image (below):
Unfolded the obect is 25 inches long and about 9 inches wide, divided by five panels, seven of which have photographic images, one is for the contact information, and one for the addressing and mailing part. It all folds nicely into a somewhat-larger-than-pocket-size object, printed on pretty thick, very thick stock. (The original is available at our blog bookstore, here.)