RUSSIA. Ruble, 1911-EB. St. Petersburg Mint. Nicholas II. NGC AU-55.KM-Y-59.3; Bit-65. A desirable <strong>KEY DATE</strong>, this example displays only lightly handled surfaces with some faint rub visible in the hair of Nicholas and on the reverse crown. Though mostly muted, the surfaces do still occasionally display an attractive patch of mint luster that shines through. Attractive rainbow iridescent tone hugs the reverse elements particularly prominently, in an artful display.