Here is the Mowbray page that better describes the sketched image of the primitive eagle shown in Gilkerson's Boarders Away.
I've no doubt that Gilkerson's "finest material" is drawn from the elder's pages.
If image sizing is an issue, feel free to pm me with your email and we can go from there. I am on dial up but usually have some time to wait for downloads. I recently received an inquiry re eagles and the file was 9.9mb, which I had in hand after an hour's download. The shot above was with automatic camera settings with flash and other light. Many cell phones are better picture takers than my old Canon.
Cheers
GC