[CR]question about Cantilever brake set on Ebay

(Example: Production Builders:Peugeot)

Date: Wed, 30 May 2007 15:43:03 -0400
From: "Via Bicycle" <viabicycle@gmail.com>
To: Classicrendezvous@bikelist.org
Subject: [CR]question about Cantilever brake set on Ebay

Seller claims they are early french brakes, that mount to similar studs as ones mounted for Mafac Racers??? am I missing something and could I be totally wrong? http://ebay.com/<blah> or item # 220117175111

they appear to be 1980s Weinmann or something cheaper? Older brakes generally had longer brake pads as the older brakes were not as effective so they made up for that with more surface area on the rims. and did not use phillips head screws?? If they were mounted on the fork shown in the picture wouldn't the pads be above the fender, let alone the tire and rim. seller said I was wrong? I see that they cannot mount to a normal cantilever boss because of the spring placement. maybe they were mounted to a plate. I cannot imagine special brazeons, anyone have experience? I have a pair myself and they appear to be made of some cheap potmetal, like 1970s Simplex Prestige parts.
ralph w
philadelphia, PA