This set includes two pieces of amber glass with, I believe, celluloid lids.  One lid fits perfectly; the other is slightly warped and does not fit flatly on the dresser jar.  Some auctions have the green lids marked as Bakelite, but the thinness of the lids make me think these are celluloid.  I would be glad for more information from the experts.  I don't see any chips or cracks or other damage to the items.  The green lids have a pearlescent sheen to them.