The copyright notice on the page the image came from says "Public Domain, Google Digitized". This is the link that takes you to:
http://www.hathitrust.org/access_use#pd-google
This is definitely non-commercial educational or scholarly use, but as their notice states and Kevin mentions it is not always that simple when it comes to images. I probably should have just linked to it with attribuatation.

Eric and I have solved the mystery(ies) via PMs. Thanks Eric.