Tarnished brass shell case

[AndyD]

Hello,

I have this British 105 mm shell case in my collection,complete with all the markings.

My question is,how to remove the tarnish/staining, without damaging the markings/stencils?

If anyone knows of a way to do it I'd be extremely grateful!

Kind regards,

Andy

Edited November 30, 2006 by AndyD

[Jacaranda]

My question is,how to remove the tarnish/staining, without damaging the markings/stencils?

It looks very tricky to do safely. My advice would be to concentrate on ensuring that the tarnish does not progress - a light covering of Renaissance wax may help to halt any further darkening of the brass. Probably a good idea to test it with a cotton bud on an inconspicuous corner of the stencils first, to make sure that it doesn't lift, lighten or remove the stencil markings. You could try speaking to one of the conservators at the National Army Museum, who may have some tips for cleaning or preservation.

[GeorgeCL]

Hi Andy

I would leave it as is and try as stated to perserve what you have.

there is a layer of laquer over the brass and the stencil is on top of that coating.

so if you were to try and clean the patina of the brass you would destroy both.

George