Thank you very much for the scans, because of them I could track back the Haro I own back to an all original spec '91 black Comp Extreme (although I have to recheck the tyres ... I'm not sure if they haven't been replaced), all the way to the grips.
After having found out that it really is I start wondering if I should really pursue my plans to rebuild it as an urban commuter (with gear hub replacing all derailleurs and belt-drive) ...