[CR]Strange screw on chainstay

Example: Framebuilders
Date: Thu, 22 May 2008 14:44:28 -0400
To: classicrendezvous@bikelist.org
From: "John Betmanis" <johnb@oxford.net>
Subject: [CR]Strange screw on chainstay

Does anybody know the purpose of the strange screw on the RH chainstay of this frame that Hilary Stone has on eBay? There appears to be a similar one near the bottom of the down tube as well.



John Betmanis
Woodstock, Ontario