I really don't have a clue, but my gut tells me it dates to somewhere 1910-1920. Looks somewhat re-purposed and maybe not 100% original as it was when new. to me the value of it is whatever someone would be willing to pay. Personally, I probably wouldn't give more than 75 bucks for it. But I'm a cheapskate.
I think it may be off of a larger piece. Notice on the back where something like a hinge was there. And on the front you have the hooks. Reminds me of a piece that would set in the entrance way to hang a hat on.