how old are these??

[93works]

got a few esc's and wondering if anyone can put exact or near enough year's on there release. any help would be cool

last pic is a ko cx-2

[traffman]

The one i remember is the KO cx1 which i think was out in the late 80s as Masami ran one.

The cx2 must be the predecessor from maybe early to mid 90s?

As for the first picture i dont think i was around when that came out! And im 39 hehe.