find

There are two knives from a professional cooker, need a hand identify them! The first 3 pics are for the first knife, and the second 3 for the second knife. Also have some questions willing to ask: 1.why there are some black and rusty stains on the first knife? What caused them? (I was afraid...

trying to find an old comment of a wise member here about burr formation basiclly he wrote that if you are failing to create a burr its because you are applying same pressure on edge leading and trailing strokes you are creating it and getting rid of it ..... i dont know the member's name i...