Mauser K98, 8x57mm cal. bolt action military rifle.  Serial #31930F, mfg. Germany, marked byf 43 on chamber.  Excellent condition, all matching numbers.  24” barrel has excellent bore, correct sights.  Barrel and receiver have excellent military finish with crisp Nazi markings. Stock has excellent varnish with very few marks.  Butt plate is stamped 1941.  Leather carry strap is very good.  Bolt action works fine.  Hard to find in this condition!  C&R OK.