Buttons on sleeves and body are covered in basket-woven black silk. All are present and in excellent condition and are marked the u r co ny (this is the union railway company of new york). The tails have a rear vent, soutache trim, and glove pockets.I note no flaws on this jacket, but it is possible for me to miss something small, so please examine photos and write to me if you have any questions. Measures like a modern-day mens extra small, but please go by measurements for best fit. Measurements taken with garment laid flat and doubled where appropriate. Length 20.5 in front; 40.5 in back, measured from nape of neck. By today's standards i would consider this a formal tuxedo jacket, fit for a wedding or black tie event.