Not sure if rare, but old for sure. I feel like I've seen it before though

[Headshotted]

https://phoenix.craigslist.org/cph/s...372219578.html Trawling through random states and cities craigslists and came across this.

[Toestr]

Looks like the predecessor/rebrand to the PEC Master, which isn't necessarily rare but certainly less common than say an illustrator.

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[Wmasspeedsoft]

https://phoenix.craigslist.org/cph/s...372219578.html Trawling through random states and cities craigslists and came across this.

my first marker in 1995ish PNEUMATIC DESIGNS STORM

[MrBarraclough]

I remember fixing one of those for a friend back in high school in the late 90s. Fairly simple STBB with an external air transfer tube.