[Scorch]

Assuming your rifle was made in 1890, and is chambered for 32-20, it would be a Model 1889, and would be worth over a thousand dollars in almost any condition. The Model 1889 was the first solid-top/side ejection Marlin lever action rifle (whence the term "Marlin Safety" since it did not throw empties straight up and rain them down on the shooter). The Model 1889 was later modified and became the Model 1894. The Marlin Model 1894 was renamed the Model 94 in 1906.

After 1884, Marlin had their own version of the .32-20 Winchester (32 WCF) called 32-20 Marlin, and a Marlin Model 1889 would be so marked since they did not start marking their rifles with other makers' cartridge names until the 1920s.

I think you may find that your rifle is something other than what you feel it is. If it is indeed a Model 1889, I would avoid shooting it, as it may be quite valuable. Have it looked at by someone knowledgeable in lever action rifles and follow their recommendations.