what is that logo/design on Spyderco knives?

[Gary007]

My newly acquired Para has one, so does my new Manix (although it's different), but not my Military, why is that?.

 

[Bodieism]

I think they are initials. On the Manix I'm pretty sure the symbol is an E and a G for Eric Glesser. Maybe that is Sal Glesser's logo on the para (I'm not really sure about that one).

 

[tazkristi]

Bodieism,
You are correct. It is Sal's mark.

Kristi

 

[Carl64]

Eric's is definitely a hybrid e/G as a single character.

Sal's is his first name, unless I am wrong about something that looks blindingly obvious to me. Reverse a "z" to get the zig-zag "s," carrot^ for an "a" wedged under the s's belly, then L set inside the "a"^.

 

[dannyvi]

S is sitting on the A and L is underneath the A!