A Battenburg lace on cotton collar in the popular choirboy style. It has a faux pearl button and crocheted loop fastening. I see no reason this couldn't be worn at front or back. Depth is 7 inches at opening, 6 inches at the center and 4.5 inches at the shoulders. The condition is mint. This got buried in the bottom of my drawer and has been there a while but I don't think it has ever been worn.