[CR]Mystery frame on SF Craigslist by KOF?

(Example: Framebuilders:Mario Confente)

From: "cnighbor" <cnighbor@pacbell.net>
To: <classicrendezvous@bikelist.org>
Date: Thu, 11 Jan 2007 12:58:04 -0800
Subject: [CR]Mystery frame on SF Craigslist by KOF?

''TRADE: vintage italian columubs steel road bike 4 road or track bike (cole valley / ashbury hts)'' is listing name. Photos on listing. Any idea who built it. Very nice lug work. An american I would guess Charles Nighbor Walnut Creek, CA