All About Pocket Knives

I've got 2 Kabars(1Kabar and 1 other stamped different).I'd like to know if there is an available source for dating and IDing.Here is the 4 5/16 melon tester. Thanks

I've got 2 Kabars(1Kabar and 1 other stamped different).here's the other one.

Upper knife is a nice knife, hard to find pattern, 1950's to 60's era.

The lower knife is a modern fake, unfortunately.

[quote="knifeaholic"]Upper knife is a nice knife, hard to find pattern, 1950's to 60's era.

Thanks Steve