Covers went from black and white to color at some point during the intervening years.
Here's how the banner page design changed:
And here are photos of people, a nice bit of reference for period costuming.
Illustration for the article "Hill Billy" Folk Music: A Little Known American Type.
There are loads of other fun things to see:
premiums that can come along with a subscription order, 1910 and 1933
Carrie Nation's organ
music theme jewelry