stem is new old stock  i believe came out in the 1980s or 1990s  not a expert do your own research on this.  out of the package for the picture  little shop dirty could use to be cleaned has a 21.1 mm quill looks to have 1 notable small scratch on back of stem see photos

 48 state shipping

sold as is

proper tools and professional installation required

no returns or refunds

 Thanks Stevenbven bmxmusem

Listed for sale elsewhere may end at anytime

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