This lantern is basically a 1082 S with a quick starter. The 1084 S is a 1084 which is rejetted to give 450cp. The visible differences are the label on the collar and the special shape light blue enamell top. From the material available, it looks like these lanterns were only produced in 1953 and 1954 and did not enjoy much success. Both the 1082 S and 1084 S are quite rare and I only know of three 1082 S and one other 1084 S.