I have a .58/.54 caliber black leather cartridge box/cartouchiere with an oval CS in large letters embossed on the front cover. It is in very good condition, rough brown leather interior, and the closure is well broken-in and supple but not cracked or stretched appreciably. It has a front copper rivet a bit like the Model 1864 improved cartridge boxes.

Nice as it is, what I really need is the somewhat larger .69 caliber cartridge box. So if you are willing to part with one as a trade+cash deal for a nice .58 Confederate States stamped black cartridge box, please let me know.
I'll try to post some pictures of it to give a "thousand word" description soon.