Andy Adcock
Worst person on Birdforum
Seem to remember reading somewhere that Walrus are 'handed', preferentially using one tusk for digging, with that tusk getting greater wear. So all 'right-handed' Walrus share this character.
Worth checking the pics for other more distinctive individual marks, such as scratches or scars in the skin.
A couple of marks on the back, right flipper seem to be the same
A