I'd like to suggest a little photo-trick that might just make it possible for you (and folks on the forum) to read the artists sig , agreeneyes .
If your camera is capable of it , use different exposure settings , and varied lighting conditions (from the sides , top , bottom ; also less/more & soft/hard light) and play around with the images you make .
Doing so will often result in images just 'popping-out' details that are difficult for the naked eye to discern .