Thought I'd post this here regarding the switched and switchless CX-22. Especially since some people end up buying a trak-ball with no switch to play the trak-ball hacks. Seems some pcbs without proportional trackball mode were made in 1982, likely the earliest model. They were the original pcb or Rev. 1 (C020559) and made in El Paso, Texas rather than Mexico. Also, the earliest model had Atari 2600 & Pro-line Trak-ball on the top of the case (black lettering on black case) and a black botto
Some box and manual photos of the switchless cx-22 I haven't seen before. Most of them are the switched one. Asked the guy if he could scan the manual, back of box, etc.,but never heard back. From the box, it would seem to confirm that the switchless, all-black-case cx-22 was only marketed to Atari 2600 owners, though it could certainly be used with 8-bits and the 7800, like the black Atari joysticks.
Also can add 005698 to switched serial number list.
009084, 010191 to switchle