Unusual example of an early 19th century whitework embroidered collar.
Size and shape all testify to the early 19th century time period. What is surprising is that the embroidery has been remounted onto a new fabric. Either it was redone early in its life, at a time period when the style was still appropriate, or later in the 19th century when remounting damaged embroidery and lace onto a new fabric was not uncommon but the collar shape was left in the earlier style.
About 22 inches from shoulder tip to tip; neckline edge about 15 inches, about 5 1/2 inches deep at center back.
Some very minor small stains; will not interfere with wearing or display.