In the normal course of events, our A7/10's would have been scrapped, sent half way around the world, melted down, made into something else that was in turn shipped back.
That item would then have got past it's sell-by date, and the process would be repeated. The metals in our bikes could have made this journey four or five times by now.
Instead, the carbon footprint that was laid down sixty odd years ago has got no bigger over the years as we would have been putting the same petrol and oil in our newer 'greener' vehicles.
The government should be paying our repair bills if anything!
A small aside, I tested my A10 on an emission tester the other day at an MOT station. It would pass the emission test for bikes well into the nineties.