Things You'll Need
Instructions
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. 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.
Contact Dunhill customer service via email ([email protected]), attaching the digital photographs of your lighter and its serial number. A representative will investigate the manufacture date of your lighter and get back to you.
Ask customer service for an address to which you can send your lighter for examination if it's one of the older models with an internal serial number.