First appears to be https://apertus.org/sites/default/files/Enclosure.gif
Second is here https://wiki.apertus.org/index.php?title=File:20140916091611-axiom-beta-size01.png
Thanks for reporting and finding the right links. This is the perfect fit to test the revisioning module, stay tuned :-)
i have fixed the URLs of the images.
the second should be included from the same domain, so i would upload it to the cms if it isn't already...
got access to the file list and uploaded the second picture.