The other side of the bayonet has where the serial number was (pitting has removed it to the point of illegibility). I was going off the proofing marks on the side of it to get the information for manufacturer and date (based off of what someone who appeared to be knowledgeable about these bayonets on a other site said for a similar bayonet).

If you would like to see more pictures, and if possible provide more information on it here is the link to this exact bayonet (I won't take any more pictures myself as I fought for about 45min with photo bucket to get these few up).

WW1 FRENCH LEBEL 1886 BAYONET SCABBARD 1886 Mod Rosalie | eBay