https://www.lybrary.com/sleightly-slanted-p-759062.html
Sleightly Slanted by Jerry Andrus : Lybrary.com
Mylar Mystery Match Book Magic Bill and Pen Bill and Card Ring, Pen and Handkerchief 1st edition 1974, 16 pages; 1st digital edition 2015, PDF 17 pages.
jerry andrusslantedlybrary
https://magicref.net/magicbooks/books/andrusjerrylinkingpins.htm
Jerry Andrus: The Linking Pins
jerry andruslinkingpins