MK Keyhole Back Blouse

Brand new with tags Michael Kors keyhole blouse in black and blue. Back button pull on blouse is lightweight and easy to pair with a blazer. Front silver bar has logo in small print. You can not detach this. Noticed a little mark but I think it's the material (see last photo) didn't notice it til I laid it flat. Comes from a smoke and pet free environment. Offers welcomed!