Vintage British Mist trench coat approx size 6-8

Vintage EUC no flaws British Mist long shimmery goldish tan trench coat with removable lining. I love this coat! Especially the back layered look. It’s belted. Has big buttons and front pockets. It says it’s a size 3/4 but please note: runs big. I’m a 4-6 and it’s a bit too large. I’d say more like a 6-8. Please go by measurements to be sure of fit. Under arms across chest 22”, arm length 23”, across back shoulders 17” and overall length is 45” I’m listing as a 6 since large