Patrick — Yes, it is very similar to the champagne illustrated in Wolfenden. This is an early example of S&W Rock Crystal in Japanese style. Designed by Joseph Kellar and engraved by Miller, the pattern number of the champagne is 5740 of December 1st, 1879.
The champagne was sold at Sotheby's London on March 3, 1998, and is illustrated in the catalogue. It was one of two glasses forming Lot 159.
Being relatively new to the Message Board I have been impressed by its power for documenting accurate information. It obviously has the potential for high quality research material providing that information is presented accurately. With this in mind it is important to state that the information Bernard provided was interpreted from the Sotherby's catalogue for the sale of "The Royal Brierley Collection of English Glass" in 1998 and needs qualification as follows:
The glass is similar to that sold under lot 159; it is not as tall.
The pattern number 5740 is for the suite of glasses that includes decanters, fingercups and a range of glasses.
The glass is not necessarily a Champaign glass; a number of glasses in the range had shallow bowls of different diameter and different height stems. Unfortunately the pattern book does not give the height of the different glasses.
As additional information this design was used in 1884 under pattern number 9464 for the more ornate "Pomegranate" design. In this case the work was executed under the direction of John Orchard.