Joined: Sep 2020
Posts: 836
Likes: 1,630
From: Sacramento, CA
Bikes: 2017 Sage Skyline, 2015 Co-Motion Periscope Tandem, 2006 Kona Jake, 1978 Richard Sachs, 1977 Peugeot PRN10, 1974 Allegro Schweitzermeister Model 76, 1972 Hugo Rickert Spezial, 1971 Fuji Finest
Chromed Seatstay Cap is Columbus
The bird on the seatstay cap indicates Columbus tubing, though not a particular brand. My son’s vintage bike is a Palo Alto branded bike that was built by Biemezza in Italy on contract for the Palo Alto Bike Shop. It has the same Columbus dove on the seatstay cap.
To me, it is an indication that the frame is built with Columbus tubing. You can look at internal seatpost measurements and relative weight as other clues. (27.2 seatpost diameter would correspond to Columbus SL tubing. You can also look for rifling in the tubes as another indicator.
Have you searched for a Lobster Bike Shop? Or a bike shop with lobster in the name? Several larger shops contracted for house brand bikes and this may be the product of one.