This monogram is set in Victorian style, and is sourced from the book, Industrial Monograms, by Martin Gerlach of Vienna, Austria (1881). 

Monogram: WZ

Accents/Accessories: Intricate raised detail behind the monogram; Rolled bail; Oxidized; Raised monogram; Smooth finish

Size: 55 x 47 millimeters (2.17 x 1.85 inches) 

Weight: 41 grams (1.45 ounces)