Ah Smiley, your Norton brings back fond memories. While stationed at Ramstein AB, Germany, in the late 70s - early 80s I owned a '75 850 Commando Interstate and it was a jewel. Well, a British jewel at best - perfection does not go hand in hand with a positive ground electrical system by Lucas.
It even featured electric starting which, with a warm engine on a mild day and judicious tickling of the Amal carbs, would actually fire the engine. But once running it was a wonderful experience and what a sound it made - music to the ears. However, the boffins at Lucas apparently wanted to make riding a Norton a memorable experience so now and then the engine would quit for no apparent reason. Coast to the edge of the road, hit the starter button and it would fire and run perfectly. I decided it was just taking a short rest break.
In the company of an original Goldwing, a 750 BMW, and a Renault Le Car baggage vehicle, we rode from southwest Germany, through Belgium, across England and ended up in the Isle of Man for the Manx Grand Prix. Two weeks or so later we returned via a different route and, much to my surprise and delight, the Norton was the only vehicle that ran without a single problem. It never skipped a beat. Apparently, being British it didn't want to embarrass itself while on native ground, especially on the Isle of Man.
The icing on the cake, so to speak, was being mentioned on Manx Radio because of our bright green US Forces Germany license plates. Great fun and great memories.
Before returning to the U.S. I sold the bike to a friend who really lusted after it and paid more for it than I did. That was a mistake. Oh well. Hope you enjoy your beauty for many years to come.