Tick, for all four, using the book.
I think you should really consider hanging on to all of your Perthshire Paperweights items as they will probably become more valuable over time now that they are no longer produced. But an even better reason is that it would be good fun to try to find examples of the variations, were they were made, for each design. Imagine the joy of a collection building up like that, and being able to explain it all to friends and family etc.
