All About Pocket Knives

Hello Guys,
I need some help on this one as I know nothing much about Queen's. Picked this one up today for what I think was a fair price of ($30.00). Got home and looked it up, but could not find it anywhere! I think it is a Tuxedo, and not sure if it is Bone or Imitation Bone or Delrin. Also any guess on age and value? Any help from the Queen experts out there would be Greatly Appreciated!! Thanks in Advance!! Donjr

Can't help with value or handle material, but I think that tang stamp was used circa 1984-1990.

If it's 3" long, it's a #38 Swell Center Pen. Looks to have Winterbottom Bone handles. Nice pick-up at a good price.

Note: The price shown in the pic below is from 2004. Jim Sargents book "Knives & Razors Identification and Value Guide 6th Ed.

Yes. it is exactly 3" Long. Thanks for the info