It's a model 12 from 1912.
No such animal. Try "Remington M/572". (.22lr cal., pump action rifle)
You need a gunsmith
Ask a gunsmith for help
Model 14 - Condition?
1914
You need to find a good gunsmith
around 1912
If it's a unmarked pump it's a model 12 manufactured in 1912
You contact Remington customer service, and ask for an owner's manual for your rifle. Then read and follow the manual.
Late (almost certainly December) 1916
value of Remington targetmaster model 41 cal 22rifle
Remington.