Hello Duane, I do not know when they were most popular, but they were
around from at least 1949. Check out the GB advert from the 1949 show
edition of Cycling:
http://www.oldcyclebits.co.uk/
Cheers!
Martin Hanczyc Boston, MA
>
> Hi again gang,
>
> During what period were GB KROMO stems most popular?
> Was the KROMO a suitable option for a '50s Hetchins?
>
> Thanks!
>
> Cheers,
>
> Duane Kennard