What is the value of a Remington arms company pedersen's patent Jan'y 51909 22cal sl or lr pump action rifle worth?
I think you are referring to a model 12 pump 22 rf.
The value of a model 12 is greatly determined by condition and
variation, for a general 12A (standard grade).
Mint (100%) $800-1,000
Excellent (98%) 700-800
Very good (95%) 600-700
? (90%) 500-600
Below it's a shooter from 100-500 depending on overall condition
of blue, wood, and rifling