Thanks for all your help on my Centerpull brake journey. Along the way was able to snag some pics to help document Mafac models. Check em out here and send more if youve got:
http://photos.yahoo.com/bc/twrawson/lst?.dir=/Mafac+Brakes&.src=p h&.order=&.view=t&.done=http%3a//photos.yahoo.com/bc/twrawson/lst %3f.dir=/Mafac%2bBrakes%26.src=ph%26.view=t
I did come across a set of Gran Compes which are indeed special - unfortunately they live on Paul Williams bike! Tom Rawson Oakland, CA