I don't think there is any publication that fully covers Perthshire Paperweights editions and values.
In any event, publicised values are normally only useful for general purposes as at the time they are published. Publication of an initial sale price may be more useful but a) most books don't give such details and b) the present value of an item can sometimes be lower than the original sale price.
Perhaps the best source of market values for resale purposes is eBay and dealer sites. But for specific weights, it may take a while before any of them come up for sale.
There's no easy solution. But if you were to show images of the weights a kind member of the Board may be able to check them out and advise.