This monogram was created by AA Turbayne, in the book Monograms & Ciphers, London, England, (1906) 

Monogram: MS

Accents/Accessories: Convex shape; Loose bail; Smooth, mirrored background; Smooth, rounded edging; Central, raised monogram with oxidization

Size: 24 x 34 millimeters (0.94 x 1.34 inches)

Weight: 4.80 grams (0.17 ounces)

Sterling Silver Chain as shown: 16 inches - $25.00 or 18 inches - $35.00