Those will sell with no problem on eBay. To add to Joel's comments, some tips to maximize bidders' interest:
* photography is key, In focus, and showing the knives' details.
* describe the condition accurately - have the knives been used? sharpened? Carried?
* if the knives include the original boxes and factory papers, they'll sell higher, sometimes much higher. So you'll want to include that stuff in your description and in the photos.
* with Old Timers, knowing exactly what the tang stamp says is critical.
Good Luck,
-Bob