Hello I know this is way late, however this was brought to my attention. I am Bob Darnell and I am responsible for Copper plating this scooter. I was close friends with Cliff at Pappago Plating. This plater was located in Phoenix Arizona on Washington. Over the 17 years of CVoP I had chrome plated many large parts including Lambretta, M/C, ATV frames and even some out door table's. My friend and client MJ Coe asked me to help him complete a custom build on this Rally. While traveling in California, I saw a custom Harley chopper with every part copper plated and it was turning green and it look interesting and I liked it. I mentioned this to MJ and he said can we plate a Vespa in copper? I said I think, I will ask Cliff at Pappago Plating. He agreed and the rest is now history. I hope you still have it and enjoy it. I maybe able to answer any other questions if I can remember. Just PM me Cheers
They use yogurt to patina copper on roofs, for instance. Or there's this I found from Architectural Digest :
How to patina copper so that it's a lovely Lady Liberty shade of blue (called "verdigris")? Do as the wizards over at HGTV do and shake up a "patina cocktail": Mix two parts vinegar, one and a half parts ammonia, and one half part salt in a spray bottle. Prep your copper piece by cleaning it and then spraying it with window cleaner; then spray on a coat of patina cocktail and leave alone to air dry. Repeat—coating it in "patina cocktail" and then letting air dry—on a daily basis until you're happy with the finish."
Keep in mind that this is visual corrosion and consider the thickness of the plating.
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