They were manufactured between 1925 and 1929.
Your Savage was made in the year 1937 if you have a model 99 lever action rifle.
If we are talking about a Savage model 99 rifle,chambered in 300 Sav. caliber,then your lever action rifle was produced in the year 1949 by Savage arms Company.
A web site entitled the model 99 should be able to help you locate the date of manufacture for your Savage model 99 rifle.
I can say that the Savage model 23D chambered in .22 hornet was made by Savage from 1933-1947.I do not believe that the serial number break down by year is available in the public domain.
If you would post the serial number and model number,I can give you a date of manufacture.
Your Winchester model 1892 rifle was made by Winchester in 1913.
What is the manufacture date of a Colt AR15 rifle serial number 192754 model SP1
It would help if you gave the model number.
1884
savage has this info on the savage gun collectors site, google it.
Serial number, features
Your Savage model 99 rifle was made in the year 1951.