9mm headstamp question

[Mr. 16 gauge]

Just got done resizing a bunch of 9mm hulls; I usually sweep up everything (hey, if they don't want 'em, I'll take 'em!) when cleaning up at the range. Most of the brass is mine, but I've found a few that aren't with headstamps that I haven't seen before.

They are: * I *

C.B.C

Also, I have a few marked "C.C.I."....is this the same CCI that makes rimfire ammo? I always thought that that company made Speer ammo in centerfire? Also (along the same lines) I have one headstamp that says "Blazer" on it.....I thought that the blazer line (if this is also CCI/Speer) was aluminum cased, berdan primed, and nonreloadable? This case is brass and has a boxer primer.
Can anyone help me identify these cases?
On a side note.... Found a WHOLE bunch of foreign made cases, mostly Fiocchi and S&B.