On the pictures, no obvious counterfeit features are recognisable; however, of the Jules Verne there are very good counterfeits, which are hardly identifiable from photos. A reliable assessment is only possible through personal inspection, e.g. in a Montblanc boutique or via Montblanc customer service; there a chargeable authenticity check can be commissioned, with the writing instrument to be sent in. Market values should not be read from asking prices but from realised sale prices, e.g. eBay sales of completed auctions.