i’ll try describing it. across the middle it says 1-J9 and when you rotate it 90 degrees it says SF-I. with the “-” being the percussion cap(or what it is called I had to look it up in a dictonary) so theres four sets of numbers/letters equally divided over the bottom.
ill even make a drawing :D
FS O I (with the J9 and the 1 rotated 90 degrees to left and O being the percussion cap)
(dots had to be there for drawing to work)
 upon closer inspection I noticed the bullet has black paint on it, the whole bulet.