Gilt Thread Colour Sergeant Rank Patch

just some pen written on the inside label

Adjustable Belted Back

but would benefit from dry cleaning as due to long term storage there are a few faint marks across the jacket

British Royal Air Force No. 1 Dress Jacket - Medium Quilted Gilt Thread Colour Sergeant RankAt a glance 100% Wool Body 2 Button Chest Pockets, 2 Flap Waist Pockets & 2 Internal Slit Pockets Button Closure Engraved Eagle "Staybrite" Buttons Sergeant's Rank Patches Fully Lined Classic Air Force Blue Colour RAF Service Dress Pit to Pit: 21" Suggested Size: Medium Regular Label recommends a chest of 104cm but looks to be tailored a bit Sleeve Length: 27" Long Label recommends a height around 188cm Collar to Hem: 34" Vintage Militaria Dated 1979