Vintage circa 1940s / WW2  British army tank overalls.
 
No size label on these- these are smaller.
Please refer to the measurements below, enlarge the photos and read the points on condition to establish whether this is right for you.  Sleeves are shorter on this by design. 
 
W ^ D war dept stamp is present inside the front placket- see photos.  
Faded olive green denim drill with brass concealed button fastening. Stitched eyelets under the arms, back cinch belt with buckle marked "British". Stand collar and seam detail on the torso. 
 
Marks here and there- legs, back, front. Has had a white label stitched inside the back at some stage- most likely a stock or laundry label.  Some ink stamps inside the front placket. Faded down with areas of uneven colour, some minor marks and general wear. A couple of mismatched buttons at the front.  Some discolouration/ staining/ spots at the back- see photo. Small hand repair at the centre back seam at the edge. Some wear on the underside of the belt. 
 
 
15 1/4" edge to edge across the shoulders
Sleeves are 19" from shoulder to cuff
19" across the chest, pit to pit
16 1/2" side to side at the waist
Inside leg is 24"
Across the hems is 9"
32 1/2" from the nape down the back to the centre crotch
19 1/2" across at approx "hip" level, side to side
21 1/2" across side to side at the base of the fly