ADH mirror being examined by 5 people

People (l.t.r.): Unidentified male, unidentified male, Bart J. Bok, J. S. Paraskevopoulos, unidentified male (possible M.J. Bester). PB11_0011 and PB11_0012 are related. n/a. Extent: 1 photograph. Size and dimensions of original material: Height 19cm, width 25cm. Condition of original material: Marked damage (faded, yellowed, curled, tear, creased, folded, edge damage). Author(s)/Creator(s): English. Scribe(s): Latin. Publisher(s): Left-to-Right. Editor(s): Unrestricted. Volume number: N/a. Original institution reference: PB11_P0425.