>>1958051Late to get back to you, but it's from a custom builder in santa cruz.
Some history here
https://www.velocipedesalon.com/forum/f22/lighthouse-cycles-19636.htmlMy dad had a custom bike made back in the late 80's/90's and so he would sometimes look for other versions used around CA.
Both of these are what I would call "oversquare" with a short seat tube+long top tube. The red one is a 53cm seat ctc and 57cm top ctc.
He has some neck issues so I put on a taller and shorter stem recently so both of us can easily ride it. Old stem is a 130mm 26.4 cinelli. Currently has a nitto technomic 100mm.
