There are stains (see photos) so the coat would need to be professionally cleaned. Armpit to Armpit - 24. Shoulder to Shoulder - 20. Top of Collar (back) to Bottom Hem - 33. Sleeve length (top shoulder seam to bottom of cuff).
They may have been exposed to pet dander/or hair, cigarette smoke, other types of smoke or purfume or scented detergent. I have no way of knowing.
If you have any allergies please consider this before purchasing. Please see pictures for an accurate description of the item and condition.