Capitol Hill's mystery soda machine

I used to go to this machine a lot in high school, and certainly drove past it a lot too; it was located pretty centrally in the Capitol Hill neighborhood of Seattle.

More than 20 years later I sent a close up photo to some old friends who immediately clocked it as “that” vending machine.

Simple curiosities like these make me happy.

Boy, if it only had original Mr Pibb so I could put it in my head. Pibb Xtra is nice but it's not the original.

Is it still there? I might go down there today to grab a soda!

EDIT: Noo, it's gone :( https://nowiknow.com/seattles-mystery-soda-machine/

Did no one stake it out to see who was stocking it?

People did but they were inducted into the Cult of the Soda Machine and have never revealed it secrets.