Think I found it (it's raining today, watching the Cubs and getting ready for an afternoon snooze).
It appears to be a
Van Veen OCR 76-78
Write up below is from website
http://www.monito.com/wankel/motorcycles.html
"Dutch importer Henk van Veen grafted a Comotor (NSU and Citroen joint venture) KKM to a Moto Guzi frame [sources conflict: there may have been some versions with a Mazda motor]. Announced in 1976 it was produced until 1978. Dry weight 642 lb (291 kg). Top speed 130 mph. Price £5000. 996 cc, 4 speed gearbox, electric starter, disc brakes front and rear."