One of six engraved copper plates for printing charts of the ecliptic for a celestial atlas that was never published. No constellation images. Plate W-259f contains the inscription 'Mr. Bishop's Ecliptical Chart Hour 21." At the top of plate W-259f "Epoch 1852" is engraved. The plate is a rectangular copper plate with stars engraved throughout the chart, starting at the 21st hour and moving towards the 22nd hour.
Materiaal
"Mr. Bishop's Ecliptical Chart", 6 out of 17 plates. "observed and laid down by J.R. Hind. ... J. Basire sc."
