All About Pocket Knives

Greetings AAPK. First poster here. I have a collection of vintage autos that I know little about and finally have the time to research some of them.

First up are two German lever locks.
ROMO tang stamp is NY importer; Rosenbaum & Mogul, from the 1950’s but please correct me if I’m wrong.

It’s the other one I’m unsure of. I should have taken a better picture of the stamp but perhaps you guys can identify it.

I’d appreciate any and all info on these. I recon they’re valued around $300 each, but again, correct me if I’m wrong.

Thanks guys! Happy to be here!

Both of your knives were made by Bontgen & Sabin (Bonsa) in Solingen.
The other knife is marked "CCC" for Cleveland Cutlery Company.
Both knives were made between 1950-1958.

Thanks Bill! Did a lot of research and never found that info. Much appreciated.

You have 2 very nice knives there B.D., congratulations! to AAPK, too!