In conjunction with Phil Clapham, I am analysing Discovery Mark data for humpback whales to determine movement pattern and migratory interchange in the Southern Hemisphere. I am presenting the results at the IWC intersessional workshop on the comprehensive assessment of southern hemisphere humpback whales in Hobart, Australia, 3 April 2006. I am very interested to try and track down any photographs associated with the Discovery Marking process which I may be able to use during my powerpoint presentation in Hobart. I am particularly interested in photographs of Discovery marks being fired at whales (any species), being retrieved during whaling operations or any other associated photographs that may be of interest. I will of course acknowledge the source of any photos supplied and will be happy to supply a copy of the final paper when published. Please email me (david.paton@deh.gov.au) scanned photographys, do not post me original images. I appreciate any assistance in obtaining relevant images. Cheers David Paton Southern Cross University Australia Email: david.paton@deh.gov.au or d.paton@nbcnet.com.au