I've got some of these, but they're very early ones, they look like they're made from ally channel, not CNC'd like all the ones i've seen on the 'bay etc etc.
Still being made by Mrazek (? spelling) called MOC's i think.
These were the very first "V" brake, years before Shimano. The guy responsible for them is working for the other big S, Specialized now.
ATB
John