In
http://img139.imageshack.us/img139/8...damagedqn5.jpg ... I circled the cap that fell off (found a photo online).
http://www.earthv.com/images/073002_...4ti4200_04.jpg shows its label says 2 2, not 2 6 like mine. Odd.
It is interesting that both photographs show the top right corner color cap as black, not green like mine.
Odd. I hope that helps!