Find a good gunsmith and ask for help.
No serial number provided.
Try Browning.
1959; 100 USD
Best left to a trained gunsmith.
Case was an option.
10
1959
Take it to a Browning trained gun smith
84 years give or take a year
The link below will take you to the Auto 22 owners manual. Several photos are in the manual
Open action remove pin remove slide,barrel,spring.
A full detail take down is best left to a trained gunsmith.