Royal Air Force Blue Sweater 1980s

Rare vintage wool sweater used in the Royal Air Force around the 1980s. There's elbow patches, shoulder patches with hook and loop straps, and an utensil pocket on the left side arm. Lying flat, it measures about 19" armpit to armpit, 25" shoulder to bottom, and has 25" sleeves. Material is wool and size is 100cm. No noticed rips or holes, elastic still works. The color is a dull blue gray. Tag has a handwritten name "Wrigglesworth O??"