I sent a certain Arachnid knife company an email last night asking if they could identify a knife for me that Patty bought me way back in 1999. They emailed me back asking if I could send a Pic. I did and about an hour later they not only identified the knife for me but sent me a "Sheet" on it!
Turns out it was only made in 1999-2000 and is a Mini Police Necklace knife, and yes mine has the serrated blade. Here's a link. Hope Y'all like it.