I would like to use, in a journal manuscript, a figure for which the original source (a website) no longer exists. What can I do?
I found the figure in a Ph.D thesis, the author of the thesis is however not the copyright holder of the figure. But the website of the figure's reference no longer exists, and is also not saved in the internet wayback-machine. I have a copy of the figure, but i do not see any possibilities on how to ask permission to use the figure.
Any suggestions on how to proceed?
I don't want to make this question too case specific, because I think it is a problem that could occur often, in different countries and settings. But of course I would like a practical resolution: the specific source indicated in the Ph.D. thesis is A2Engineering.com retrieved march 2010. I already looked a lot on google, also using reverse image search, and I could not track the copyright holder, or their nationality or country of residence. The difficulty is that there are many companies with similar names, but their field of interest does not seem to match with content of the figure. Is there any chance that i could still use it, based on the idea of "fair use"?