1860 Spencer carbine

[jmeizlik]

Hi Everyone,
I'm new to this so I hope all goes well.
I just purchased an 1860 Spencer carbine and I could use some information
and some parts.
It's # 53587. I can't make out the inspection mark.
The parts I need are:  the screw that is holding the ring bar (forgive me for
not knowing the correct terms), the long screw towards the back.
Also, the little screw/device that I believe holds the magazine from
falling out.
Thanks for any help.
Jeff