Epilogue by Karl Fulves Issue 14 March 1972 Page 112 et seq.
Personal Comment: Among the fans of self workers this revelation of a card has become a standard. The nearly self working version of this has been published in Pallbearers Review before this. But the above version is better. An even more streamlined handling is found on page 156 in Epilogue by Gerald Kosky. It is good and easy. What's not to like?