Original Federal Civil War Shell Jacket with Yellow Piping

Original Union cavalry uniform jacket, also referred to as a shell jacket, in worn condition. The type was worn by countless Federal horse soldiers during the Civil War, this original specimen is in truly wonderful condition.
Garment is constructed of fine wool material dyed a deep indigo blue with the blue color still rich and vibrant. Cloth body exhibits virtually no visible moth nips or holes so common in these wool garments. Jacket features a standup collar with a black japanned hook and eye stitched in. Approximately 2” tall with 3/8” wide, cavalry-yellow piping or lacing decorating the edges, collar is adorned with two, cuff size, eagle ‘shield’ brass buttons set back on each side. Both buttons are offset by additional short strips of yellow braid. Collar braid is bright, tight, and free of any seam separations at the center outside or inside seam as normally seen. Jacket front reflects the common 12-button closure with eleven buts one is missing, original brass eagle ‘shield’ buttons securely sewn to the flap edge. All buttons still have the original reddish/brown colored stitching with none that appear to be re-stitched. Both sleeve cuffs are functional with two brass eagle ‘shield’ buttons sewn on each cuff. Cuffs also exhibit the chevron-style, yellow braid. Cavalry braiding also runs down the opposite (buttonhole) flap, circles around the entire bottom edge of the jacket and rises to each shoulder from the two belt-rest pads sewn on the jacket backside. 
Interior body of this uniform jacket is padded and lined with original, light beige cotton cloth that is in exceptionally fine condition. There is some fraying in the stitching but sit very solid. Lining also sports a chest-high interior slash pocket. Jacket sleeves are also lined with dull beige cotton or muslin material in still very fine condition. Found stamped on the upper inner sleeve of the right shoulder is a maker mark. Opposite armpit also shows stamping in black ink.