All About Pocket Knives

I have this in my collection, but i don't know when it was made, is it from ww2?
Greatful if anyone can help me out
/Jorgen

Wish I could help you but it is a cool knife.

There were a few "Ern" cutlery manufacturers in Solingen Germany. The largest & most prolific was Carl Friedrich Ern or "C.F. Ern". Their main trademark logo was an Eastern Crown above a Scimitar, but they registered at least 100 trademark names. In business 1874 to late 1990's.
What are the markings on your knife ?
Pattern is known as a "Springer". Would be helpful to know when this pattern was first made. Maybe there is a registered patent in Germany and this would give a date.
kj

This far i get when I search the knife

During board of the Third Reich the firm was not engaged in manufacturing of knifes, but on HJ a knife there was mark ERN, Solingen and a sword with a crown. Pocket knifes also were branded by trade mark ERN. To 1940 firm represented only two trading marks: “a crown and short asian sword” and “an eagle with the snake”.

Works ok