A vintage nurse's cape by Wells Uniforms Ltd dated 1957.  Ideal for 1940s re-enactment or stage wear as the style has not changed.  
Could also be worn for goth or Steampunk etc.  
The cape is black wool with a purple turn down collar and purple wool lining.  There should be a metal hook and eye at the neck but this has been removed.  
One small snag on the hem see photo 5
Size - medium size chest 36-38 inches - shoulder to shoulder 16 inches.  Length from nape of neck to hem 35 inches.