Detachable starched day collar, 100% cotton, made in England.  The style is called "Cameron". 
Measurement straight down from top to the point is approx 2.25" to 2.5".  Depth at the back is 1.75".  Please check that this is the style you require.
You will need a pair of collar studs to fix this collar to your tunic shirt.  These studs are available separately (the stud in the pictures is just for display).

SizeCollar size 15.5 (to fit shirt size 15)

Condition: Men's collar, several years old, but never used, and still in perfect condition.