I remember my best friend as a kid had a knife that his dad gave him. Back then I never paid much attention but one day this year I forgot to bring my knife with me so I grabbed his on my way out the door. (We hunt out of his garage). Anyway when i got out in the stand I took the knife out of the sheath and really looked it over. It was an Olsen 4800. The knives came from MI but the blades themselves are solingen German steel. The knife was very well built and the blade was great. It had the sharpest edge of any knife I have ever handled. Not knowing anything about them I started looking on Ebay and found some but they come with a price tag. I put a bid in of $65.00 on two different ones and both times they went higher then that. I came across a guy that had 5 of them all brand new, never carried or never sharpened in the factory boxes. He sold me all 5 for $200.00 and I jumped all over it. I am putting one back for me and one back for my 1 year old son. I will use one and the other two I have sold to friends. I spoke with my friends dad and he bought the knives new in the late 60's and they were sold to him as kit's he had to assemble them. Olsen went out of business in the late 70's.