The Anniversary group came out in mid 1983. The Campagnolo catalog #18 printed in May 1984 has photos of all the brake hoods and they are all the world/script logo.
C-Record (Corsa-Record) came out in 1985 and that is when I think the shield logo was implemented for all the models of brake hoods. This was also the time of the unpopular white hoods and white o-rings on the brakes. It was rumored that Valentino liked white.
I know that the first black C-Record brake hoods (shield logo) where only offered on the 1985 Bianchi Centenario (100th Anniversary) bikes and were not available from Campagnolo until quite a bit later.
Chuck Schmidt South Pasadena, Southern California http://www.velo-retro.com (Holiday Sale)
Marc Boral wrote:
> Well, all the anniversary gruppos came with world logos, that may be one
> clue. So, my guess would be approx. late '83 on.
> Marc Boral
> Long Beach, CA
> At 09:45 AM 12/6/2001 -0500, David Bilenkey wrote:
> >Chuck's note about the revised timeline made me take another look at it,
> >specifically to see if a question I had is answered there: When was the
> >switch from the world/script logo on the brake hoods to the shield logo made?
> >I can't see this on the timeline anywhere, can it be added?
> >David Bilenkey
> >in warm (11 C) windy and wet,
> >Ottawa, Ontario, Canada