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I work at a Pawn shop and just saw a W/G ring with this marking... so I tested it with my jewelers acid to see what it would do. When testing with acid a slight scratch into the metal must be made (enough to go through a plating) when the acid hit the scratch in the white gold the underlying metal bubbled green and showed a 'copper' color. The test showed to me that this was a copper based metal with a rather thick w/g plating.

No value at all in the Pawn world due to no way to smelt this to get the metals separated.

Hope this helps... It sure did for me.

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