Since the pictures didn't come through on my first attempt, I decided to post them again.

The brand name. The Manualo part indicated player piano.

The inside, from the handy little doors it has on the front, from when it used to be a player piano.

The 10 year warranty.

The Baldwin seal, as Baldwin bought Hamilton early in the century.

I couldn't get decent pictures of the serial number or the patents, but they indicate that the piano was built sometime around 1915.