OOH, another pretty collar.  All these lovely ones I just recently acquired are from the same box, from the same estate.  What fun, these treasures are!   This collar is a pretty lace pattern along the outside edge, with silk machine embroidered insets. Edging at the neckline is yet another style of narrow trim. 

Color of the collar is off-white.  The collar dates from the 1920's - 1930's.  Although very nice and appears unused, it does have a tad of oxidation.  Measurements at the neckline edge 15" from side to side.  Width of the collar is 4-1/2" wide.