I'm embarking on my first leatherwork project, a laptop sleeve. I read a few guides online and feeling inspired bought a piece of leather - second hand - off a certain online auction site.
On opening the leather at first I was very pleased with the colour, it was described in the listing as "saddle tan, veg tan". However after making some test cuts to get a feel for it I've noticed that the dark brown colour of the leather is really only on the very top surface, the underside looks like the original lighter colour, as does the cross section of the cut.
Is this the way it should look? On all of the guides I've been reading online the leather appears to be a more consistent colour. My fear is that it has not been tanned correctly and the colour will rub off rather quickly. If this is the case, are there steps I can take to prevent this happening?