to the forum and I'll do my best for you.
The straight line stamp is considered to be the most desireable and the oldest of the Schlieper stamps. With the Eye Logo on the pile side tang of the clip blade it is some of the earliest. I would estimate that the knife came from the 1950s or the 1960s. Cracked ice handles are not terribly common but I wouldn't quite call them rare either.
All in all, it is a nice example of the early work by a fine cutler. Like so many of those Eyes, it went to work as opposed to going into the safe.