At a recent gun & knife show I ran across a dealer I've known for decades that had a cache of Workers. They were all PE, 3 screw clips packed in the old blue box and foil. None of them had any stickers/writing on the boxes of any kind.
No steel stamp . Just "Spyderco -USA" on the port side, and "Seki-Japan on the Starboard ( Right, clip side)
It seems like I heard the dealer state they had lefty models too, though I didn't see them.
The clip states "US and Foreign Patents".
The size is correct, edge ground decently. The frame is thicker on the right side, and they are almost sharp enough to slice especially on the thinner, left side.
The Blade is not ground very well, with some mistakes. Not at all the precision or smoothness of my anniversary edition model with presentation box, and aluminium grips.
I'll try to get my son's camera to get pictures up. I've never seen these blue boxes unmarked, never ran into fresh caches of NOS workers before. Come to think of it I haven't seen but 1 worker in the last 15 years, now there's a box of them. It just had me suspicious. That, and the lower than I'm used to quality control.
Needless to say I had to buy one as I love these old workers.