Husqvarna 1870 Rolling Block, 16 ga. single shot shotgun.  Serial #9990, mfg. Sweden.  32” barrel has shiny bore with 60% finish.  Fixed sights installed on barrel.  Receiver has 60% blue with some corrosion marks.  Stock and forearm have been sanded smooth and re-finished.  Import marked.  Rolling block action works fine and locks up tightly.  Good candidate for re-barreling.  Antique, can ship to your door.