The clothes the kids and the teacher are wearing look like it might be "fashion" from the 1920's 0r 1930's...so I'm guessing that the book was published about that time.
I thought it was a pretty cool birthday gift...I may have to take a road trip to Tucson and have TS take me shopping at all the "neat junque" stores.
Oh by the way....
Have you started your Easter cards yet? That's okay...I haven't either!