The sleeve features the emblem of the Danish Civil Defence

does have a few markings from prior field use

this coat makes durability a breeze

Given the inner label is clean it is possible it is unissued / unfinished surplus

Royal Engineers' NCO Patches

British Army Olive Green Pullover Jumper - Large 106cm Chinese The sleeve features the emblemAt a glance 100% Wool Material Reinforced Elbows & Shoulder Patches Choice of Neck Drawstrings Ribbed Wool Body Royal Logistics Corps Shoulder Pips Snug Fit but Stretchy Crewneck Design A. C. F. Shoulder Brassard Length Designed to Fit All Sizes Heavy Duty & Hard Wearing Iconic Woolly Pully Style Classic British Army Olive Green Colour Chest Size: 41" Suggested Size: Large Slim Label states 106cm Sleeve Length: 27" Regular Collar to Hem: 30" Vintage