Vermeil ( /ˈvɜrmɪl/ or /vərˈmeɪ/; French: [vɛʁˈmɛj]) is a combination of sterling silver, gold, and other precious metals, commonly used as a component in jewelry. A typical example is sterling silver coated with 14 carat (58%) gold. To be considered vermeil, the gold must be at least 10 carat (42%) and be at least 2.5 micrometres thick. In the US, sterling silver covered with a base metal (such as nickel) and plated with gold cannot be sold as vermeil without disclosing that it contains base metal.
Hope this helps. I'm not sure if it's worth the effort to recover. Like e-scrap sometimes! Someone with more knowledge should chime in.