« Reply #15 on: Wednesday 26 June 13 14:30 BST (UK) »
There's an excellent flicker website which shows scores of old hospitals on ten pages. I noticed many of the patients in several of the British army hospitals are wearing those jackets with light coloured (white) lapels.
Here's the url for Page 1
https://www.flickr.com/groups/hospitalsinlondon/pool/?view=lg
Aberdeen: Findlay-Shirras,McCarthy: MidLothian: Mason,Telford,Darling,Cruikshanks,Bennett,Sime, Bell: Lanarks:Crum, Brown, MacKenzie,Cameron, Glen, Millar; Ross: Urray:Mackenzie: Moray: Findlay; Marshall/Marischell: Perthshire: Brown Ferguson: Wales: McCarthy, Thomas: England: Almond, Askin, Dodson, Well(es). Harrison, Maw, McCarthy, Munford, Pye, Shearing, Smith, Smythe, Speight, Strike, Wallis/Wallace, Ward, Wells;Germany: Flamme,Ehlers, Bielstein, Germer, Mohlm, Reupke