Model 100

[KPE]

I have a Model 100 22 rimfire. This was actually my first firearm given to me by my parents over 50 years ago. My question is where can I find more info , such as manufacture date, etc? By the way it still shoots great, a real tack driver.

[Regnier (gunrunner)]

KPE;

The Model 100 was made from 1935 to 1959, with time out for WW II and a short time between 1951 and 1953. Since the Model 100 was not a serialized product, the only way to determine an approximate date of manufacture is by certain changes made during the production era.
Early Model 100's had a steel trigger guard and a birch wood stock, the trigger guard was changed to plastic in 1947 and was listed with a walnut stock. In 1954, the Model 100 was produced with the new, patented Micro-Groove rifling.
There was a Model 100S made in 1937 and was known as the "Tom Mix Special" that had target sights, drilled for scope mounts and sling swivels with sling.