Chanel black pre-owned black dress

Chanel size 42. Size and care tags removed so I am guessing this is a wool crepe. Unlined halter style (2buttons at neck) with a cute v neck and criss cross at waist detail with 3 buttons. Has a slit in front where it crossed over but doesn’t necessarily show leg. Has pockets Approx measurements unstretched pit to pit 18” waist 17” length 33”. Has a bit of stretch to it. The back zipper is a bit stiff but works fine. The back has a nice dip to it so not a fully open back but a bit lower than the front. I’m a 2 and this is too big for me, so I’m offering it at a good price before I have a chance to take to my tailor to alter.