Lawrence Bittaker serial killer dubbed the "Toolbox Killer.” Bittaker was sentenced to death in March 1981 while his accomplice Roy Norris received 45 years to life. 

Authentic 4" x 9" pop up flasher card handmade by Bittaker on death row.  Bittaker's pop up cards are perhaps the most genius items we've seen made in prison let alone on death row.
The card opens up and a male flasher pops up. On the back Bittaker has hand signed and dated on the back, LS BIttaker (Var "A", #4)  c2009 @SQSP.
 
Includes the blank envelope in which Larry has sent this. On the inside back of the flap Bittaker has handwritten, "Var. A #4."