HMM I have not seen one marked by Northwood, but he had tried to set up I think 3 companies in the Midwest & failed, with competition from the newly formed U.S. Glass, Northwood joined a similar co-operative...the National Glass Company but In November, 1899, Harry Northwood departed, leaving all his molds behind. By 1902 he had opened a new company. Where the molds he left in 1899 ended up and if this is one of them is anyone's guess.