sorry - must have missed the thread re the bowl - have been having computer troubles recently
The bowl is definitely Caithness , I have two of them, one with its label. I have pink and amethyst, and I have seen them in green too.
see this thread here http://www.glassmessages.com/index.php/topic,33748.msg182571.html#msg182571
didn't find anything definite about them thought, and they are not in the book - but they may be more recent than the period the book covers.
re your vase - I have quite a collection of Wedgwood Stennett Willson vases, and don't think it is from his era but didn't collect the Frank Thrower Wedgwood stuff (don't like the colour) so possibly his era - have not seen that shape before though, and the Dartington First 20 years book I have does cover Thrower's Wedgwood designs too and there is nothing similar in there either. Sorry - cannot help with that one.
Have you done a search of this site ? either for Caithness or Wedgwood? you may find a match previously mentioned like the bowls?