ANU Photographic Services2021-02-052021-02-0514-Dec-196http://hdl.handle.net/1885/2223195 Photos6cm x 8cmPhotographb&wimage/tiffen-AUVisitorsProfessor D Martynov with Mr Arthur Robert Hogg (Mount Stromlo Observatory)2021-02-05This item is provided for research purposes. Contact the Australian National University Archives at butlin.archives@anu.edu.au for permission to use.