Courtesy of Mike 'the stove' Vaughan, Littlehampton, England This is the stove based on the X246B lantern. This one is unused & dates from 1991 & is fitted with a Primus silent burner. the brown paper wrapping around the burner was marked 'Primus Cadac'. The burner has stamped on it 'Licence Primus Sweden, 4138S' Cadac were a South African company who made product under licence to Primus. Referred to as the X246B stove in later pricelists, these were called the P100 in earlier editions.