Not too sure what to call them, but to me they look like discs. The clever thing is, if you look at it from a different angle to that shown, i.e. from above, it just looks like a sphere. I don't think its very old, but could be wrong. The plastic seems 'modern', compared to some old plastic items that I've had, and the screw top appears modern too. I'll never use the perfume - its a bit too pong-whiffy for me
, but it just looks decorative and a fab. design.