This is the Taco rub rail that I used on my boat, but as we discussed before, my boat is a Mk II.
"Taco Part # V11-9795WHA50-1"
Good hunting!
I recently replaced my '79 E-27's rubrail and (finally) found the original replacement from a company in Canoga Park California named WEFCO (818) 866-8872 www.wefcorubber.com Good luck
Mike