Dunhill shell dating
Each Rollagas comes with a serial number that includes the date of manufacture.
However, because the Dunhill company doesn't make its serial-number-deciphering method public, if you want to date your Rollagas, you'll have to contact customer service.
Taking all this into account it should not be surprising that the original and complete dating code list, in possession of the firm's archivist at 30 Duke Street, is some twenty eight pages long.
Older models have a serial number inside the lighter; a Dunhill technician must take apart the lighter to access the number.
Take a picture of the lighter and of the lighter's serial number with the digital camera.
Look for a serial number on the bottom of your Rollagas lighter.
If the number is there, the lighter was made in the 1970s or later.