Looks like it could be a copy. There are Indian-made copies of P1907 bayonets available (from IMA) and these come with scabbards.
The one in your pictures looks like a copy to me, as the finish on the metal is has a thin and overly glossy look about it, which looks unlike the finish on correct scabbards (even those painted gloss black).The texture of the leather is wrong too, as it looks like there is a surface to the leather which is out of place.
To me, the fact that there is crazing of the leather where it is joins the metal looks like a poor surface which has crazed recently, rather than sixty years of wear. I reckon if you twisted the scabbard, it would craze and more surface cracks would appear in the leather.