Hi Bill,
I'd love to be able to answer your question but as far as I know there are no web pages that give specific values - as ever it's a case that things are worth what people are willing to pay. What I would say is that his art glass is not common. In the last 5 years or so on eBay I recall maybe 3 of the smaller sized foot goblets and a couple of decanters - none of the more substantial pieces like yours. In general Nuutajärvi art glass is sought after and fetches very good prices, whoever the designer.
robbo