One of ten glass positives photographs of lunar Eclipse, 1910, November 16, prepared from negatives lent by Astronomer Royal, taken at Greenwich Thompson equatorial 26-in reflector, size of each positive 3 1/2-inch x 5 1/4-inch.
One of ten glass positives photographs of lunar Eclipse, 1910, November 16, prepared from negatives lent by Astronomer Royal, taken at Greenwich Thompson equatorial 26-in reflector, size of each positive 3 1/2-inch x 5 1/4-inch.