This is a super high quality piece. Compared to my newer Barbour jacket this feels much sturdier and better made. The color is either an olive brown or an olive drab (dark green) depending on the lighting. This jacket is listed as a small, but like a lot of vintage polo, fits more like a modern large.
I'm 5'3 and it is huge on me. I had a friend wear it for the pictures and he is 6 feet tall, medium build and it fits him well. So I would say for practical purposes this fits like a big medium or a large by modern fit standards. Jacket measures 24" armpit to armpit, 32-33" long.
Feel free to send me a reasonable offer.