Vintage dark olive green/brown double breasted cocoon coat overcoat

Vintage dark olive green/brown double breasted cocoon coat overcoat with single button and two large front pockets. Fabric is has a cozy brushed texture. There is no fabric contents or laundering instruction tag, but I tested the fabric and it seems like a wool blend. For reference, model is 5'4" size 6. Brand tag reads size 9. It fits like an oversized small/medium, or a regular large. Pit to pit: 21” Length: 29” Sleeve length: 22”