All About Pocket Knives

I took a chance on ebay with this one.Ebay = Description-Remington UMC Made in USA R3503 with 7-3/4 open, used cond. & has price tag the lady said was when he bought it then $150.00,but she only wanted to start out at $9.99.

The picture in the auction was the back of a stag Stockman and that was it. The picture was not even a Remington knife. I took a chance and won the knife and here is what I received in mail today. The knife is in very good condition and all blades have excellent walk & talk.
I need help dating knife and would like to know value? The back of the main blade is stamped R3505,which from Sargents 6th edition tells me it is a 3-3/8" bone handle Stockman. The Remington stamps on the front of all 3 blades are REMINGTON UMC inside of circle and on the outside of circle on the right MADE IN and left is USA.

A few more pictures.

Buckeye,
It looks to have the stamp used from 1924- 1933. As for value, I would expect it to go for somewhere in the $80-$100 range on Ebay, whatever that means. By the way, that bone is handsome!
Mark

What the Ramrod said .

Thanks Ramrod & Rob for the help . I really like this old Remington, it looks better in person for 80 or so years old. I paid $51.00 shipped,I think I'll oil the joints,put an edge on the blades and put her in my pocket.