Voided AAC cap badge - any cleaning tips?
 

This is my latest acquisition... I am quite happy with it, as I have been looking for a voided example of the wartime AAC cap badge for some time.

However, it looks like it would benefit from a clean of some sort. There are some spots of verdigris, for example around the legs and the base of the wings. Also, the colouring of the badge does not look at all like the normal white metal finish, and, at the moment, seems closer to a brass colour, on the back and front. Evidently, the badge has been lying around somewhere, without tender loving care!

Would anyone have advice on recommended cleaning methods?

I would normally hold back from cleaning a badge, if not absolutely necessary, but seems it is in this case.

Some AAC badges were nickle plated which is laid over a base layer of brass or copper plate.

Yes, I have a nickel-plated example (see attached). However, the lugs are then also plated; whereas the lugs on this one are not.

True, my nickle plated AAC and para badges all have plated lugs.

Looks a great badge with lovely patina to my eyes, shame to remove it. However if you’re dead set on cleaning warm soapy water would be all I’d advise and after drying a dab of WD40 to prevent further tarnish or any corrosion.

Personal choice on cleaning, there will be varied opinions - but, so long as there is no corrosion or harmful aspects to the tarnish, it does tell a story, provide character, and is part of the history of the badge.
Mike

I am also not a fan of cleaning a badge, unless absolutely necessary.

However, I am a bit concerned about the small spots of green, which I assume are Verdigris and will spread if left to do so.

Just spray WD40 on it then. That’ll neutralise the verdigris and stop spread whilst retaining patina.

I'd just leave it as found and not worry.

Rotating wire brush on the drill at 1200 rpm, shifts anything mate

Thank you gents for all of the advice - much appreciated!