Trivial as this may seem, I'm trying to find out who designed this "Open Access" logo, and whether there are some original files for it. I've seen this logo (or variations on it) on the PLoS web site, the open access publisher Hindawi Publishing, and the Mac OS X program Papers uses it.
It's driving me nuts that I can't find the original. Other widely used logos typically have a site where a designer or organisation provides a bunch of versions in different formats, such as the Creative Commons symbols, the ubiquitous
RSS feed icon, and other projects such as the 
Geotag icon. It's sometimes desirable to have different formats of an icon, and ideally have a vector-based version (e.g., in EPS or SVG) format that can be used to create images at different resolutions, and these projects provide these files.Apart from the interesting fact that there doesn't seem to be a standard logo or symbol for Open Access, does anybody know where this logo came from?
