Rare late 1800s Union Suit

Turn of the century Summer weight cotton union suit in a blue micro check. Simply made with a combination of hand stitching and machine. Classic barn door feature also known as a fireman's flap. Hand overcast buttonholes and small plastic buttons (one is a mismatch).  Excellent vintage condition with just the faintest small amount of foxing. Just an extraordinary rare antique piece of clothing. It's definitely extra large but these were typically worn way oversized with a billowy fit for comfort. Chest to 50", Waist to 52", Shoulder to hem 45", Torso Length 35",