I have a few original early Normark carbon rods all with full length cork handles and sliding reel fittings - as they are still my favourite option (i know that is a minority view). Pride of place is my original 12ft Normark carbon match rod from the early 80s, trouble is theres no markings on it. I dont think it was the "Norboron" ( I did find out what blank it was a while back but have forgotten now). Reading Mick B's post above - that sounds the same as mine. Bearing in mind i used little else (except for legering) for about 15 years that rod became an extension of my arm. It still makes an excellent "waggler rod" and great for mainlines to about 4Ib.
I also recently got an early Normark microlite and titan, of which the titan is an excellent tip-actioned stick float rod with some backbone for chub etc. However, my favourites are my pair of Normark 11ft "Specialist" rods (mid-late 1980s SCD series). I re-ringed one of them to match the other. I guess they have 1.25Ib Test curves and an "Avon style" action and i use them for tench, chub or bream - not quite enough power for barbel or even larger chub in fast water or for tench in weedy swims. As for carp, they would be quite unsuitable but I rarely fish them.
Just remembered, re the 12ft Normark Float rod with metal rings at spigot ends, the Norboron (composite glass/graphite) had these with a gold look, (this could be your rod Mick B?), while mine are more gun-metal silver version of 1980s (first fully carbon Normark rod series?)