When I was a small boy, there was a company which made a cheap pocket knife called Imperial. They apparently broke easily.
On two different occasions I was out playing in the dirt somewhere when I spied what I thought was a MARVELOUS treasure. What looked like an Imperial knife mostly buried in the dirt turned out to be a great disappointment. In both cases it turned out to be only the thin sheet metal side which had broken off and was discarded.
I still see one of those junk knives once in a while but I wouldn't pick it up even if the whole thing was there!
It was something like the one below, only it was still black.