yes that was the one. I am so pleased you forgot!!
(I almost didn't bid myself as there were no bidders - I thought it might have been a fake or something - glad I took the risk). Cost me $32 all up with postage.
When I go to fairs over here and see a Caithness nondescript second, clearly marked C11G, being offered for sale at $120, you can see why I like Ebay , despite it's problems.
The paperweight is gorgeous, and the signature just adds that little extra to it.
Did Jonathan commonly sign items? I guess he was quite young when this was made?