I'm not versed in this brand... But now that I've taken a few moments to compare the eBay-listed knife with my Carl Schlieper, I'll state the obvious.
Nothing Under "Eye" on My Very Old Stockman...
Just some of the obvious inconsistencies with the genuine Carl Schlieper "German Eye" stamp are as follows:
1) the ray-beam at the 12 o'clock position is too short;
2) the eye lid should not narrow at the sides;
3) line above eye lid should be a gentle bell curve;
4) as already noted, the stamp is too big for the tang; and
5) the stamp isn't centered on the tang.
Further, my "German Eye" (shown above) is on the reverse tang; the front tang exhibits what Paladin refers to as the "straight line stamp." For the eBay-listed eye to not have "Germany" beneath it, the other side of the tang would've been stamped if it were of a known variety -& the "straight line stamp" would most likely be on the front.
I'd like to add:
Keith, thanks for sharing what you've encountered... It's brought to light something all collectors should watch out for.
-Bill