Got one about a month ago with a stamp in the tang just like linguist's above. Was that stamp always used in an EAB or did they change over the years? (BTW, is that a shark or a tuna?)

One I've got is wicked sharp and put a couple of good size nicks in my face (and in a finger when polishing). It is also a black scaled 5/8 (barely) with a nice smile.

Zombie or not, inquiring minds want to know...