4 button sleeve
The coat size is 48, however, it has been altered and is measuring at 50".
Light white mark on sleeve...see last photo. 
Measurements: 40" waist, 26" sleeve (shoulder to wrist), 20" shoulder seam to shoulder seam, 32" coat length, 13.5" pant rise, 33.5" inseam, 1.75" cuff