Vintage Kathy Che button-up, long-sleeve, red blouse.  Sleeves and front are pleated w/a slight flare at sleeve ends.

Approximate measurements in garment's relaxed position:
Shoulder seam to shoulder seam across back = 16"
Underarm to underarm across back = 21"
Shoulder seam to cuff end = 19.5"
Neck to hem end = 25"