Gian Robert was a manufacturer in Casalserugo, Padova, who made mid-to-moderate range parts.
The company operated from about 1960 and folded in about 1985.

Article in Classic Lightweights web site HERE
Updated 7.3.2014                     Click on images to see larger version

Gian Robert range of derailleurs as illustrated in the 1981 Ron
Kitching catalog.

 

Two variations of the rear derailleurs. The first appears much more crude in execution that the latter. No manufacture dates are known for these.

                

 

Rear derailleur and shifters
Photos courtesy Byron Morton

                

Nylon (plastic) rear & shift levers..

      

Seatpost with box

           

Derailleur set

             

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