Pipedia Dunhill Dating Guide: Difference between revisions

|1 John Loring indicated that the Shells will be found with a 1950 date code and a circled group size stamp, but those pipes were either manufactured and stamped in 1951, or manufactured in 1950 and, still unsold, received a supplementary group size stamp in 1951.

|2 Finishing letters and group size: "S" for Shell, "T" for Tanshell, "R/B" for Redbark, "A" for Bruyère, and "R" for Root Briar. For example (4)S, (3)T, and so forth.

|3 Loring indicated that the finished stamps were reduced to about half size in 1954. However, Mr. Hener (Product Line Director - The White Spot Smoker's Accessory Division) points out that this change occurred in 1953.

|4 Loring indicated that the logo over the finished stamp changed before that period exclusively for the shell finish, and only in 1947.

|5 The stamp "Pat. App For" was used in conjunction with the American and Canadian patent for inner tubes. We can assume that the "Pat App For" is related to blasting. Nevertheless, we cannot define the origin of the patent since it was used in both cases. This mix of patents occurred in other cases, such as the merger of English and French patents.

|6 Although introduced in 1921, it seems to have been applied vigorously from 1922. Date code on 1921 pipes is currently unknown.

|7 This stamp Shell Briar (without quotation marks and the possessive) was also used in export-type pipes (MADE IN ENGLAND) from 1952 up to 1954.

|8 In 1921 the Royal Warrant was received by Prince of Wales and his Royal Crest was used up to 1936. In 1938 the Royal Warrant was received from the new King George VI and his Royal Crest was used up to 1953 when the King passed away.  Dunhill continued to display the warrant without the monarch reference. The label was again revised and the monarch reference was added as "To The Late King George VI" (this form continued in use through the early '60s). After that, it was changed for the last time to the Royal Crest of Her Majesty the Queen.

|9 The 5th digit indicated the style of the bowl within the group of a similar classification, each identified by the last digit, which could be any number between 1-9. While e.g. within the Gp.4 Billiard there were 5 different styles of bowls (5th digit being either 1,2,3,4, or 9), for a Gp.1 Billiard there were only 3 styles used (5th digit being 1, 2, or 9).