Silver Plated Champagne Flutes

Vintage silver plated tall champagne flutes. Maker unknown. I believe these are silver plated brass. 8 ⅞" tall with a 2 ¼" top diameter, and 2 ⅝" base diameter. One flute has silver loss on one side (3th to last pic) and the other has loss on its base (2nd to last pic).