Marlin Glenfield mdl 75 score

Leaning out my in-laws house & garage after they passed last year, I found my wife's Dad's 22 in the garage rafters, where it had been for almost 40 yrs. No one wanted it & said I could have it. I wish I had taken before & after pictures, it was so dirty, I couldn't tell at first what it was, but I was lucky, very little rust on it. I don't think he ever fired it. I haven't had a Marlin 22 in years, was going to buy a 795, now if I can only find some 22 shell's I'll try it out, they are pretty hard to come by around here