Fire-closed

A fire-closed glass vessel has a tip melted to seal the contents.  The tip was snapped-off to extract the contents, usually a powder cosmetic.  Fire-closing was used, only in the first century A.D., on glass spheres, birds and mold-blown vessels shaped like pine-cones produced at Avenches and probably at Ticino and other areas of north Italy.  Fire-closing was not used in the East.