Mid Victorian 15k Gold Pillbox Pendant glass and this particular example is

and this particular example is one of the finest we've seen

with various shades of blue that form a striking contrast with the red eyes

opening to reveal a square locket compartment with glass front

Tests as 15k gold and platinum

Mid Victorian 15k Gold Pillbox Pendant glass and this particular example isDATE: Victorian, c. 1860 An unusual Victorian pillbox pendant in 15 karat gold. The flat cylindrical body features a hidden compartment that slides open to reveal the compartment. With intricately engraved border to the front and back. Dating from the 1860s. MEASUREMENTS 2. 8 x 1. 6cm WEIGHT 4. 8g MARKS No marks present, tests as 15k gold CONDITION Very good, with fine antique patina