Mechanical assembly of orbiting sensors. Got stuff all over the place, including Mars, especially when they don't make orbit.
Our company has changed hands a few times over the years and the current regime is more interested in massive defense dollars than civil cents, so out we go at the conclusion of our existing contract . It was fun but politics and hardware managers that know nothing of hardware have trashed it to the point where I won't miss it much. Fun travel, good pay, rub shoulders with sharpest characters in their field, what am I saying, of course I'll miss it but its time to get a real job now.

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51 willys M38
62 willys M38A1
79 chevy
92 300D
95 300D
96 vision recumbent
2004 Wrangler

Aaaaahhh, stinkbomben! Of course. My Dad has a novelty shop and he sells a ton of those. The school principals visit him every now and then and request that he pull them from the shelves.

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1983 M-B 240D-Gone too.
1976 M-B 300D-Departed.

"Good" is the worst enemy of "Great".

I sell rocks