Beautifully carved, this little brooch measures just over 1 1/2" long x 1" across. It may be celluloid, but the striations on the back may lead you to think "bone". I'll leave that for the experts :) The roses are very intricate; however, they have holes in the middle. I'm not certain that these weren't intentionally put there, or they may have held rhinestones at one point. I have checked with my 10x loupe and there is no glue residue - it is a cleanly drilled hole. Regardless, this vintage beauty is in excellent condition.