Maya Angelou Autograph Ceramic 4x4 Tile Matted Framed For Sale

It’s not authenticated or certified. It came to me from my high school Literature teacher after I used her poem “And still I rise” for an assignment. I was told that the black sharpie marker was used up and the first signature was very faint so she (maya) redid it on top of the faint black with red. My teacher had several authors signatures on tiles & displayed them the same way in her classroom. I have no reason to believe it’s a fake but I can’t prove it otherwise either.