The Savage is a striker fired handgun with an external cocking mechanism. The whole firing block assembly is removable (actually you take it out to field strip). It uses a double stack magazine holding ten 32acps plus one in the chamber. Spare magazines are available from TrippleK. Taking the grip panels off can be difficult and they may break. Again, there are modern replacements available but based on the design there really is no reason to remove the originals.
There were three versions and the one you show seems to be version 1. What looks like the spur of a hammer is the cocking strut.
To field strip you pull the slide back and put the safety on. It will act as a slide lock.
Hold the cocking strut down and turn the locking block ninety degrees.
You can then remove the whole firing block assembly.
Then pull the slide back, move the safety to the "fire" position and slide the upper off the frame.
One thing I've noticed is often the ones I see for sale are marked as "no serial number". That's because the serial number is not where most folk expect it to be.
The Savage is an accurate, easy to shoot, well thought out handgun with NO screws. I bet you'll enjoy it.