Adjusting the 13-inch refractor (2 of 3)

Two people inside the 13-inch building, at the eyepiece end of the 13-inch refractor, which is pointed nearly vertically. The back end of the refractor is missing. One of the persons is standing on the rung of a ladder beneath the open end of the tube and is half-way inside the tube. The other person is steadying the ladder. One of three images in a sequence: PLB35_0035, PLB35_0033, and PLB19_0005. 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_17_2087.