Vintage circa 1950s Wescot British chore coat.
 
Marked a vintage UK size 38. 
The measurements can be found at the bottom of this listing. 
 
Cotton drill, faded tan with all over wear, marks and paint splatters.  Patched at the sleeve, back and shoulder. Various overstitched repairs- at the collar crease, shoulders, above chest pocket, sleeves, cuffs, back vent.  Change button fastening (some slightly mismatched).  Patch pockets and side access slits.   Faded with areas of uneven colour, fade lines where its been adjusted and then let down, seam edge wear and distressing and some small fray holes.
 

See photos. 
Laundered.
 
18 1/4" seam to seam across the shoulders at the back
Sleeves are 22 1/2" from the shoulder seam to the end of the sleeve
From nape to hem is 43"
21 1/4" across the chest under the arms measured flat
21 1/2" across side to side level with the top edge of  the lower pockets