The moulds were produced at National No. 6 Glass Works (Dalzell, Gilmore and Leighton) in 1901 and shipped to the Cambridge Glass Co. Ref: The Artistic Glassware of Dalzell, Gilmore and Leighton by Bob & Jo Sanford/Barbara & Jim Payne, page 168 states that although a few test pieces were made, there was no production of this pattern.
NOTE: Sid Lethbridge: the statement above refers only to Dalzell, Gilmore & Leighton not to the Cambridge Glass Co.
NOTE: Paul Kirk Jr: Thirty-three different items are shown and listed in the 1903 Cambridge catalog.