spadia
n.— «The ad, called a “spadia,” was the equivalent of a full page, folded over the regular circular so that half showed on the front and half on the back. The private-label page pulled off to reveal more private-label items on the reverse side.» —“Harco Drug targets an incentive-driven private-label strategy” in Northport, Ala. Drug Store News Nov. 6, 1989. (source: Double-Tongued Dictionary)
Further reading
Twice a day the River Thames recedes, revealing a muddy shoreline. Hobbyists known as mudlarks stroll the surface searching for objects that have found their way into the river over the centuries, everything from ancient Roman jewelry to modern...
What if, instead of being an inanimate object, a dictionary were alive? That’s the idea behind a lavishly illustrated new children’s book called The Dictionary Story (Bookshop|Amazon) by Oliver Jeffers and Sam Winston. This is part of a...