If you are asking about the No:111 model 40 they were made in 8 variations from 1939 to 1952. Your best bet is to ask Daisy directly. They offer a FREE service to tell you more about your old Daisy. See the link below.
Mfg 1910 made in 4 variations.
rc46661
It all depends on which Daisy model 99 you are asking about. 99 Target special: Variant 1=1959, Variant 2=1960-1979 99 Champion: mfg 1967 99 Lucky McDonalds: mfg 1960
79919061 is the Sears Code name (799) and model(19061) for Daisy air rifle. The model number I can not verify, but model number 19062 is the "Daisy model 300." This may be your Rifle. (C02, Futuristic style, plastic stock, 5 shot) mfg 1968-1975.
1912 to 1936
The answer is yes. How do I know; I have a model 4 rolling block rifle. I am trying to find out the year of mfg. The serial# is 354682
The Model 37 was mfg in 1969.
Daisy has a very screwy and unusual way of numbering air guns and rifles. Example: Model 111-B American Youth. Boy holding first Daisy on side mfg 1998 Model 111 Western Carbine 700 shot plastic stock mfg 1963-78 No 111 Western Carbine 700 shot plastic stock mfg 1963-78 No 111 Model 40 Red Ryder, 8 different variations of this model then it became the 1938 Red Ryder model in 1975. Notice the KEY words "No" verses "Model" Confused enough, So is everyone else. There is NO model 111 40, But don't tell Daisy they may want to make one.
1957
1912
Mfg 1975
Go to the Ruger website, Customer Service, Historical Data, Handguns, find your model, and there is a serial number/year table.