1959 HALF DOLLAR designed by John R. Sinnock, the reverse adapted from a design by John Frederick Lewis
Diameter: ±30 millimeters
Metal content:
Silver - 90%
Copper - 10%
Weight: ±193 grains (±12.5 grams)
Edge: Reeded
Mintmark: None (for Philadelphia, PA) centered above the bell on the reverse
