All About Pocket Knives

Got this knife quite a few years ago and it was in pretty sad shape.The master blade has a lot of play in it(both side to side and when you apply pressure )and the pen blade was broken.The plastic scales were also cracked.Not wanting to relegate it to the parts drawer,I hit upon an idea.Since I was also into collecting watches and didn't have a tool to open the backs of some I decided to make one from the pen blade.I carefully ground the broken part round and thinned it out a bit.It not only makes a good watch case opener but also opens knives as well.The master blade works well for scraping rust from other blades.
Recently I notived what I thought was an unusual thing about this knife:It has the circular Remington stamp on the master blade and a straight line stamp on the pen blade.Is this common among later model Remingtons?I have several other Remington knives(folders and fixed blades)and none of them are thusly stamped.

Thats a good idea for that knife. I think the main blade has been replaced at one point in time. The straight line stamp was reserved for contract knives, and the contract companies didn't have access to the circle stamp. The knife you have was a popular contract model , and I'd be willing to bet it had 2 straight line tang stamped blades when it was new.