Return of the Bizarre Shrink

From MagicPedia

Return of the Bizarre Shrink by Paul Harris was a manuscript release in 1977 written by Richard Kaufman. The routine inspired from Doug Bennett and Ricky Sanchez, uses Paul's Bizarre Vanish principle to shrink a playing card sandwiched between two other cards.

It was also republished in Magic Magazine January 1992 and Art of Astonishment Vol 3.