Lighters were made by many Murano companies. Maybe all of them. The metal inserts were often made in places like Japan, then put in the lighters. I am not sure that yours in Murano, though. The ridged arcs remind me of the vases made by a Czech company. Maybe someone else will know for sure whether yours is Murano or Czech. I'll try to check down the Czech vases. (I can't remember the Czech vases having bubbles, so I am really unsure.)