The only way I know this S.Bang pipe was made before 1984 is the spelling of Copenhagen. They changed it to Kobenhavn after Per and Ulf took over the company. Something they wanted to do because they wanted to make pipe of a higher quality that also had handcut stems. Some pipes before 1984 had preform stems and styling similar to other popular companies. My hunch is that this was toward the end of the transitional period, as it's a beautiful sandblast with handcut stem made exactly the way the duo would today.