Topic: Uranium Glass Lampshade.

[chopin-liszt]

It looks great 
But I'm afraid can't see any evidence in your second link that the shade shown is actually Clichy. It's just what the seller claims.

[NevB]

You are right Sue, I don't think these shades have anything to do with the Clichy paperweight factory, it's just a term everyone uses to describe them, there are lots online.

[flying free]

Used a bit like the way some sellers misappropriate 'whitefriars' for any piece of glass that might be knobbly.
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[chopin-liszt]

  Things are improving then. It used to be that a round(ish) polished pontil mark meant wfs. 

[flying free]

   - now the pontil mark doesn't matter.  If it's knobbly it might be Whitefriars regardless of what the base looks like.