Pair if Urns - Age, and how to even out patina?

Can anyone give me some information about these pair of Art & Crafts? / Art Noveau urns?

As you can see from the pictures, one urn is a dark grey colour with some small flashes of copper/bronze colour here and there, and the handles have large areas of bare copper/bronze?

The second urn on the right is covered in a heavy green/ verdigris? patina, and the handles have large areas of bare copper/bronze.

Really appreciate any information on the following:

• Age and provenance?

• Are they copper or bronze, or what material?

• How should these urns be cleaned or treated to even out the patina between them both?

Thank you

 

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I'd take a rag, dampen it with white vinegar, and rub the green one if removing the "greenies" is considered desirable. It may not be. You can't restore the patina, the green corrosion means it's already gone, but it might look happier.

 

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You can use some soapy water on a cloth to wash off the polish residue.

 

Think these are probably just a tad later than the A&C period. Maybe circa 1930, with some classical influence. Probably entirely brass with an applied patina to the bodies. The look at the finish makes me think they could be lacquered, which has deteriorated. Would be difficult to restore, as any polishing will likely remove the applied patina.

 

Thanks very much for all of the advice. Really helpful and informative. Vinegar on rag does nothing to remove excess green build up. Will try soap and water.

 

If it's under a coating, it may be there a while.