1906 Barber Half Dollar. Proof-66 (NGC).Predominantly charcoal-copper patina yields to an area of silvery brilliance near the center of the obverse of this richly original Gem. Iridescent apricot highlights are also noted for both sides. Fully struck with uncommonly smooth surfaces for both the type and issue, this is a superior quality survivor from a mintage of 675 coins for the Proof 1906 Barber half dollar.