I had a hard time with this one. I'd been watching Agent Carter, but was severely lacking in short nip-waisted tweed or wool blazers and shoulder pads, and collared blouses and button-up shirts -- really 80's dressing and 40's has a big overlap in this regard.

I'd also been thinking about the code breakers at Bletchley Park (3/4's of the workers there were women):
http://www.huffingtonpost.co.u.....32856.html (There was actually a uniform that involved a navy A-line skirt, lace up oxfords, a white blouse, men's navy tie and beret --- but my closet didn't have it).

So I decided to go with trousers -- although I think they were mainly for factory work and leisure time? At least one of 'Dilly's Girls' in the article talks about buying some to the horror of her father. Round-toed heeled shoes and not quite PPL.

I tried two jackets (Mr. Rabbit said I looked like a volunteer going to fight in the Spanish Civil War in the first shot -- just before the 40's). I also went with a cross-over blouse under my most cropped cardigan. Later I remembered I have a coral short sleeve cotton button-up that might have worked too.

Longer hair would have worked a little better for the roll-back and pin operation -- but at least I had the red lipstick!

Some inspiration pictures too -- the group shot was the personnel of one of the Bletchley huts.

ETA: adding this awesome culottes and loafers photo which I didn't end up using as inspiration but deserves to be seen.