So much helpful info over at the Level thread, I wonder what anybody knows about Presto frames.
Wifey's is very nicely built, with PRESTO and the rider's name (in kanji) relived into the BB shell. Lovely lugs, with what look like the same ends as Kalavinka.
The original stickers said "PRESTO -Perfection and Design".
I saw one for sale on CL some months ago, but never another.