Fenton Aqua opalescent ruffled bowl in Dragon and Lotus

Did you see this?

http://www.glass.co.nz/Fenton.html

Your Fenton mark can also help you know, also, on these items, I understand the smoother the bottom rim, the liklier it is to be an original antique, older & used a bit.

Unfortunately, it looks like their collector plate molds were broken, so the ones on EBay would not be original reissues, but reproductions.

Here's more Fenton history which may assist on how the original would look:

http://www.fentonscollectibles.com/

The last paragraph of this gives some clues on spotting Fenton reproductions:

 http://www.suite101.com/article.cfm/antiques_and_collectibles/43604