Jordan
If I said "rolled" steel then that was a very bad typo, as the correct term is Royal Steel; a fluid steel barrel moniker that Hunter used on some of their hammer guns. Hunter's F Grade hammer gun came in three grades; the lowest grade (a $20 gun) was shipped with Royal Steel barrels, the same gun with Twist barrels was slightly more expensive, and the most expensive basic hammer gun was shipped with Damascus barrels (Twist and Damascus Steel barrel tubes were labor intensive to produce and cost more). Twist and Damascus barrels are not marked (they were identified by their barrel patterns); but if your barrels are Royal Steel, that identifier should be stamped on the bottom of each tube just ahead of the barrel flats. But even if your barrels are Damascus or Twist they are safe to shoot, if sound, with period correct low pressure loads (RST produces "vintager" shells). As to the "83" stamp on the frame, that is the patent date for the rotary top bolt and has nothing to do with date of manufacture. That same stamp was used on all Smith guns. Hope this helps.