Vintage 1940s Canadian battle dress blouse serge!

Vintage 1940s Canadian battle dress blouse serge! Made of a wool fabric with what appears to be a linen lining. Marked a size 10. The waist looks like it was taken in an inch. This appears to be from the early 1940s. Great condition and has a strong mothball smell. Two large pockets on the front and built in waist belt. Inside is marked B 450 Battle Dress Blouses Serge. The name of the previous owner is written on the inside aswell. There are patches on the arm. 30" waist 38" bust.