Need help identifying 2 Boker Tree Brand knives, and one Randy lee Bob Karp Thrower

[Markny]

Hello All, I purchased a large lot of knives and have been able to figure out most of them with the exception of these 3.
2 are Boker Tree Brand, 1 has the number 503H on the box and the other has BA626S
The other is a solid thrower with a leather sheath with just the marking in the picture
Any help would be greatly appreciated.