[CR]brake levers for the drops of top bars

Example: Framebuilders:Mario Confente

Date: Mon, 12 Feb 2001 20:14:48 -0500
From: kurtzla <kurtzla@mcmaster.ca>
To: Classic Rendezvous <classicrendezvous@bikelist.org>
Subject: [CR]brake levers for the drops of top bars

Can somebody explain this......I week ago a list member mentioned a brake lever used by tour riders which allows them to brake from the tops of drop bars. Is this the same set up as on some cyclocross bikes? Where can these levers be found since they would seem to make perfect sense on a city or fixed gear bike?