www.925-1000.com

Any info (maker, age...) is greatly appreciated!

http://i48.tinypic.com/64qz6c.jpg
http://i46.tinypic.com/168zajr.jpg

Hi,

Welcome to the Forum.

Are there no other marks on the piece? If not an attribution for a maker is very unlikely as the term 'Quadruple Plate'' was a generic one used by several manufacturers.

The '1646' would indicate a pattern or batch number.

Trev.