I recently bought these knives in a single lot on eBay, the seller was in Austria.
Other than the Alox SAK which is what caught my eye, I have no idea of the quality, value, age, etc of the others.
Most of these will be going back on eBay to recover some/all of the cost of the original purchase, but for all I know there might be another gem in there of similar "goodness" as the old Pioneer.
They have been very lightly cleaned and oiled, but not scrubbed, scoured and polished.
Gentlemen and Ladies, may I present for your learned consideration..
All stainless, Tang stamp is two arrows (archery type) crossed in a circle.

All steel, including the pressed scales


Robert Klaas, Solingen. Kissing Crane tang stamp on both blades, brass liners


Stainless blades, MOP(?) scales, <JWK> tang stamp


Souvenir knife from Vienna. "Made In Germany" tang stamp,

Blade appears stainless, FES tang stamp


(presumably) German Sak-a-like with glass cutter. no tang stamp

WAGOT tang stamp and Solingen stamp on back of tang, brass liners
and you've probably seen it before, but once again for your viewing pleasure
