The gas bottle cover has these markes on it which are alwys there and I feel they are near some rivets or fixings and of recent repairs before we bought her and it looks like corrosion. They are all along the bottom edge. Any ideas?

I wanted to add another picture but can't see how. It gives the view of all of the puzzles.

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We have had this 'aluminium worm' on previous Eribas and, as Aaron Calder says the treatment involves removing the lacquer, removing the tarnish, polishing and re coating.
A simpler solution would be a suitable 50th wedding anniversary present like this on ebay...191164692633

TP

You could remove the gas locker door, easy to do, and take it to a vehicle spray workshop, use a local guy rather than a main dealer, the aluminium is only a sheet and they can easily remove the oxidisation? and then respray with clear laquer, thats if you want the hassle of a proper job ;-)

Alternatively because it is just a piece of sheet aluminium, get them to replace it, possibly cheaper option anyway

Thanks to all and sundry. Will discuss and decided, as usual.

It does seem to be at regular spaces along the bottom and that was my thoughts on fixings, but maybe not.

Hi if its only the locker door why not diy ,rub down with fine wire wool respray with clear lacquer.

Hey! Good idea Keith thanks, I will try to source the lacquer

Thanks Aaron.

If you use fine wire wool the finest I use is 4 nought thats 0000 just to give you an idea of how fine that is you can polish glass ie a windscreen with it, and people do.

Ebay is a good source of wire wool in all grades

Thanks to you too

As the ali is dimpled and silver, I think I could wire wool it but is the silver likely to come off too?

Yes you're probably right Brian [any news from the ex Madame Cane?]