Tea Stained Ivory Celluloid or Bakelite Flowers on Wooden Oval Brooch

This is a lovely pin with celluloid flowers that look tea stained. The pin 2 5/8x1 1/2" and is in excellent condition. The base of the brooch is wood. It is not marked. I found this exact brooch on another site and it stated that the plastic in this piece is bakelite not celluloid. I will let you decide. The last picture is a similar item I found on the bakelite and wood pics site.