Nice Finds My Input.
First Photo ?
2nd Photo, buttons what are back marks?, 1st is a civilian, 2nd is a Union Staff officers button, 3rd (back-mark?) but I believe its a civilian monogram C and not a CS Cav button as there was not one made like this. 4th Union staff officers cuff and I need to see the back of the star piece.
3rd Photo, small bullet is very small need more photos and measurement but I believe post war civilian. On the 3 ringer (dimensions, base photo etc)
4th Photo, The pistol cartridge is unusual and compared to the finial appears to be 36 cal. (clean it up a little and lets see what it is) brass piece ? cartridge box finial is it brass or lead appears to be a Yankee one if brass.