Vintage Eatons Birkdale Blue Plaid Shirt Size Small

Vintage Eatons Birkdale Blue Plaid Button Up Shirt. Condition is very good but is missing one button. Can be replaced with the one on the top of the collar. See photos. Material tag is faded, fabric feels like a cotton wool blend to me. Shirt has been washed. Size Small, measurements are in the photo section. Feel free to contact me with any questions. Thank you.