For $157 at a gunshow, I got this mint condition 1951 550-1 in 2-26-2011 from an old guy who got it new when he was a teen ager. He was tall and neat and looked like a doctor or something. Some kind of guy who could own a gun for 60 years and not scratch it.
It cycles CB shorts, but has no scope grooves or holes.
5 years later for $175 at a pawn shot I got this beat up swiss cheese 1957 550-1 on 2-24-2016. It is missing the deflector shield.
I have not shot it yet. Ok $26 and the deflector is on the way from Numrich.