Hi Tom, you'll need to take a sample of the original paint in to a paint store to have it matched, as there's no record of the original Scott Bonnar formula. The best place to get this is from either the inside of the chain cover or the back of the plate on the handle bars - just take the whole piece with you and ask them to match the paint that's on it. There's a few different greens used over the years, yours is more of an avocado hammertone.

How did you go picking up the machine?

Here is a picture..
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