While the best vintage folder is probably a Raleigh Twenty, I don't think any vintage folder is really a very good folder. The Raleigh Twenty's saving grace is that it's a good bike. A taller person may need a longer seatpost for it (28.6 mm) but that's no problem.
+1. Folding bikes really aren't that "compact" by modern standards of compactness. Even modern folders are still pretty bulky when folded.
And OP wins gold star for most unexpected username in quite some time.