Vintage Set of 2 Pop-Up Children's Books: Pigs and Goats

Circa 1950's-1970's "The Two Jolly Kids" & "The Piggywig Family" All pages complete and unmarked Pages are cardstock with portions of the pictures that pop up (3D-like) as that page is opened. These books are vintage, so some of the pop-ups don't function perfectly (see pics). 8 pages in each book Full-color illustrations on every page