It appears to be not widely known that the very first Record brakes had plain arms with no wording at all. I am lucky enough to have a pair and have them in front of me as I type this. Brev Campagnolo appears on the cable adjuster and quick release. Brev Camp appears on the pivot bolt. The bolt itself has the usual spanner flats but does not have the chamfers top and bottom and therefore the front will foul some headset fork crown races.
This form of brake must have only been produced for a very short time,
maybe less than a year, and I would be very interested to know how many
more sets there are out there.
Tony Beckett
Stubbington UK