50s Blue and Red, size small jacket

Heavyweight jacket is lined & has pockets. I’m guessing 50’s due to what seems like Bakelite buttons.Excellent condition, no rips/stains. Fits like a snug small, see measurements below From flat lay- Bust, Armpit to armpit- 20 1/2 inches Sleeve length, shoulder seam to sleeve end - 23 1/2 inches Across shoulders, shoulders to shoulder seam- 15 inches Across waist- 19 inches Across bottom- 18 inches Garment length on back of garment, from collar to bottom of garment- 20 1/2 inches