Vintage mid century military Mac raincoat grey blue size small

For sale here we have a classic military Mac, hard to date them as they hardly changed for decades but look like 30's / 40's items. 

Measurements 

sleeve - 25

shoulder - 19

length - 48

Armpit to armpit  - 21

Fit - 38 reg

Condition - Good for the age, there is some discolouration around the inner collar and the belt is missing but in reality very good.