Old calendar page found in a bathroom many years ago...

Hi, folks. When I was going to college at UC Santa Cruz (go banana slugs,) I found this artwork, an old calendar page, tacked to the wall of the LGBT student center bathroom. It was love at first sight. I begged the center director to let me keep it, and we worked out a deal in exchange for volunteer work. It's been many years since that day. I'm still wondering who the artist is and am curious about the story behind the artwork. As you can see, it looks Victorian. There's no clue on the item itself: just a blank calendar on the other side. Can anyone help? Thanks in advance.

http://imgur.com/gallery/TEqymW9/new