Four smiling males posed in front of the pier of the 13-inch Boyden Refractor. The view is to the south-west. The C-clamp-shaped polar axis, and the tubes of the double-refractor, are on the floor south of the pier. The person second from left is shown in PLB35_0035 et seq. 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: PLB35_19_2222.
