Note: I am not a professional fashion historian. If you spot any inconsistency or outright fallacy somewhere in the picture descriptions please feel free (or even better, obliged) to let me know!
second quarter of the 14th century (1325-1350), English - London?
British Library
Yates Thompson 13: the Taymouth Hours
folios 8v, 9v, 10v
http://www.bl.uk/catalogues/illuminatedmanuscripts/record.asp?MSID=8148