The plate holder at the Newtonian focus of the 60-inch Rockefeller Telescope

Direct view on the plate holder of the 60-inch Rockefeller Telescope. Engraved on the holder is "J.W. FECKER. / PITTSBURG. PA: / 1931". The telescope tube is covered by a white shroud. A hand controller can be seen below the plate holder. n/a. Extent: 1 glass plate. Size and dimensions of original material: Height 8.2cm, width 10.7cm, thickness 0.3cm. Condition of original material: Stable. Author(s)/Creator(s): English. Scribe(s): Latin. Publisher(s): Left-to-Right. Editor(s): Unrestricted. Volume number: N/a. Original institution reference: PLB20_08_2103.