http://www.ebay.com/gds/Fentons-Rare-Vaseline-Opalescent-Glass-of-1905-1929-/10000000004698827/g.html

Have you checked this piece with a black light ?? I know the above article may be confusing but whoever appraised this dish did not know Vaseline glass (which it is not) or Uranium glass ( not that either) !! However many do not know which is correct !! The confusion came from Fentons production of opalescent glass on some pieces of canary Vaseline glass and Uranium glass !! So they assumed that all green or yellow opalescent glass by Fenton would be Vaseline or Uranium glass !!
If you will notice even the most rare pieces of the Canary Vaseline glass is valued at around $500.to $600. !! Not $3500. !! Sorry !!