Gygax's Killer Die

As a follow-up to yesterday's post on the Marked 20-sided Die, here are some quotes from Gygax on his own Marked d20. Thanks to T. Foster at the Mystical Trash Heap blog for bringing this to my attention.

3/13/03
"Those low-impact d20s did get pretty round in short order--well short order in terms of gaming time. Rob Kuntz had one that would stand on a point now and again. I still have a couple that I use when playing OD&D as the DM. One with gray faces on 10 sides is a "killer" die that comes up on those faces a lot--the 11-20 range, of course! Can't find it now, but it's likely in a box of old dice somewhere in the basement here. I have a second one with red faces that's as good for the monsters' rolls, of course" (EnWorld Q&A post)

1/29/04
"As it happens I have quite a number of the old low-impact dice around here somewhere. The points on the d4 were very sharp but wore down quickly. Rob had a d20 that would stand on a worn point about one roll in 50 : )"

"Somewhere I lost my d20 with half the faces colored gray. It was my "killer die" that rolled an inordinate number of 20s, and the players really hated it : )" (EnWorld Q&A post)

Following this, T. Foster wrote: 
"I played with you in "Necropolis" at Glathricon (in Evansville, IN) in 1988 and am pretty sure I encountered your infamous 'killer' d20 -- it was white, numbered 0-9 twice, and rolled awfully well (for you, badly for us :) )."

2/6/04 - in response to T. Foster
"It was either my gray or red "killer die," undoubtedly. It has since sent a large number of adventurers to their doom when rolled on behalf of my OD&D game "Old Guard Kobolds." The ninth party of six or more 2nd level characters fell to them at JanCon last month" (EnWorld Q&A post)

(A few minor edits to Gary's comments to correct obvious typos)