42" Harry Hall for Windsor's of Exeter Black Frock Coat
 
3 buttons (no buttons currently attached)
Frock style 
2 outer flap pockets
1 outer breast pocket
1 inner breast pocket
1 inner poacher's pocket
Storm collar
Single rear vent with 2 buttons over (no buttons currently attached)
Lining half Tattersall and  black skirt
 
Historic repair below front left pocket and skirt and fraying to back of collar - see pics - hence price 
 
All measurements taken on the outside with the garment laid flat
 
Across chest 22" (to fit up to 42" chest)
Nape below collar to hem 32"
Shoulder to shoulder 19"
Outside sleeve 25.5"