Ok, I'm pretty sure it's just plain wrong, but since I'm quite new to this, what I'd like to know is why.
I know the obvious being the wrong buttons. But at what stage did post-war become unacceptable.
not trying to justify wearing incorrect. It'd be nice to know what to spot when looking for uniforms
I think there have been some previous threads on this but I'll go over it for you. Basically RAF service dress hasn't changed very much since just after the First War. It's a tunic with pleated patch pockets on the breast and bellows pockets on the skirt with a single vent at the rear. The WW2 style has four equaly spaced 'crown' buttons to do it up with. In 1947 a new tunic comes in, it has no skirt pockets and is not popular. Within a couple of years it goes and the four pocket style comes back. However one feature of the 47 tunic stays and that is it buttons up with three equally spaced 'crown' buttons and a plain disc button which sits under the buckle.
Now it should be fairly easy to convert a post war tunic into a WW2 style. Post war Queens crown buttons and buckle are staybright and need to be relaced by brass Kings crown items. Also you need to make another fourth (actualy a fifth) button hole to give it the correct WW2 look. Then add your wings or brevet and you are done.
A word of caution though. Some modern tunics have the rank lace in one large braided strip, WW2 are single strips. If you do get one that is another thing to be changed. Also I have noticed that very recent RAF uniforms by Dewhirst have dispensed with the little watch pocket on the hip.