Squiggles on blades?

[abstruselee]

Greetings. Many of the Spyderco knives I have have small squiggles on the blade. I would guess they are initials. Can anybody expand on this? Thanx.

 

[Ajack60]

Like this one ?????

 

[RustyIron]

Their maker's marks, indicating the primary designer of the knife.
It's not unlike Salvador Dali scribbling his signature at the bottom of his paintings.

 

[115Italian]

Sal Glesser and Eric Glesser have their own marks indicating who designed the knife.

 

[yablanowitz]

So do most of the custom makers who have designed knives in collaboration with Spyderco.