The letters kxx represents the letter date code used by Remington to Identify when there firearms are produced.In your case the letter K represents the month of May,and the letters xx represent the year 1951.So your Remington model 550-1 was made in May,1951.I hope that you find this info helpful.
yes a 550-1 - Autoloading 22 short, long, long rifle from 1941-1970.
5501.0
Yes
5500
The Bold and the Beautiful - 1987 1-5501 was released on: USA: 13 February 2009
5501/500
5500
5501/500 in lowest terms
11.002 = 11002/1000 and 5501/500. It simplifies to: 111/500
The ISBN of Line War is 1-4050-5501-4.
5500
1-800-430-5501 Customer Service