It's not quite vintage but it is certainly an example of classic weird Gazelle bicycle history!
I picked up a 2012
Gazelle Friiik for €75. It uses a fully sealed 7-speed derailleur system and is one of the smoother riding Dutch commuter bikes. Killed off after only 2 years so I hope to have some fun digging into it and getting it back to working condition. let's hope I don't come to regret it.
Build thread here