It was manufactured in 1937 or 1938.
the savage model 220 is worth anywhere from 85 to 95 dollars US.
I found a 1903 hammerless .32 with that serial number made in 1925.
colt model 1903 hammerless ,32 cal made about 1920
the model 1908 hammerless 380 with serial # 60093 was made about 1923
Your serial number indicates that your Savage model 99 was made in the year 1949.
With the serial number that you provided,your Savage model 99 was made in the year 1950.
A semi-automatic model 1903 hammerless .32 with that serial number was made in 1919.
Your savage model 1899 rifle was made by the savage arms company in 1901 with the serial number 15779 that you provided.
A Colt 1908 hammerless .25 with that serial number was made in 1916. It would be 95 years old.
If your rifle is a lever action?Then it is a model 99 savage and with the serial number you provided it was made by savage arms company in 1921.
With the serial number that you provided,your Savage model 99 rifle was produced in the year 1949.
Contact Savage with the serial number and they will tell you when it was made.