I think you mean a Model 12 RIFLE, have tables for serial but I can't post all that or if it's made after 1920 somewhere after serial 572,000 it's date code stamped on the barrel with month and year. See related links to a pointer to a table on the Remington Society of America.
Remington didn't make a model 54, Winchester did but not in 22 (that I know of), Marlin model 54 is a shotgun.
The Remington was first made im 1946
The 20 ga shotgun was created by reaming-out the 50 cal. militery musket. I have only seen one.
In 1962.
Remington made one can the Remington 17 about 30 years ago.
http://www.remingtonsociety.com (forums)
It was made in 1919.
It was made only from 1932 - 1935
Made in the beginning of 1930 and should have barrel codes to tell month/year. http://remingtonsociety.com/rsa/questions/barrelcodes
value of Remington targetmaster model 41 cal 22rifle
This rifle was made in 1920.
1907