there is a model of campag shift lever have been wondering about for thirty-five years or more. it is a b-line set which was current in the 1960's. do not know a model name or number for it. have been through the campag catalogues and it does not seem to appear anywhere.

here is the best photo i have been able to find:



despite looking like something which came from a hardware store the wingnut is original equipment.

for part of its its production life it seems to have been concurrent with the gran sport shift lever set, model 1026:



it disappeared with the launch of the valentino/ngs set in the late '60's, model 1014/1A:



does anyone have any information on this mystery shift lever set?

thanks for reading.