Here’s a refresher on the Mother of All Incriminating Typewriters, the Woodstock model owned and used (for very bad purposes) by one Alger Hiss. For more detailed reading on the matter, and on leftist grassy-knolling, read the wonderful appendix (“‘Forgery by Typewriter’: The Pursuit of Conspiracy, 1948-1978″) in Allen Weinstein’s definitive book, Perjury.