Vintage Taupe silk Striped Button Down

I'm just trying to clean out my closet and pay off student debt! This shirt has the feel of luxury and elegance. I am not sure if it is 100% silk, but it has the look and feel to it, for sure. A perfect neutral for any wardrobe. There are slight blemishes (I think) and I attempted to take pictures of them, but given the nature of the fabric and the very minor effect the spots have, they were very hard to photograph. I never noticed them until I was looking at this shirt to sell. I should mention that I do have cats. I have made an attempt to keep them away from the room I'm storing this piece in, but alas! There's usually an intruder. I recommend giving your item(s) a wash when you receive it if you have any allergies