1959 3 Screw Flat Top Ruger Blackhawk, Unfired W/factory Stag grips. Beautiful piece with shipping carton and Factory box containing this 3 Screw Blackhawk made in 1959 remaining unfired and pristine. With Ruger factory letter.
The 1955–1962 Blackhawks are known today as the "Flattop" models, because their adjustable rear sights were not protected by "ears" extending up from the frame as later became standard. 
This gun does not have the tranfer bar retrofit. This one will be missed.
MN buyer needs MN state ID and permit.
Out of M<N residents pay $30 shipping to local FFL for transfer.