Just for reference, here’s another Colian that appeared on eBay, just a few days after I found mine last spring. I love the three point lugs and webbed bottom bracket shell.
Over on the bottom right is a Colian Pursuit Tandem. I have a really bizarre Colian Criterium frame with a wishbone rear stay, Hetchins-like lugs, and a retro fade paint job. I know that Mr. Laing made some wild stuff, but I haven’t seen anything like that pursuit tandem!