The colorless, crystal-clear edge shard comes from a steep-sided glass beaker with a rounded, thickened lip. Just below the edge, the image of a fish swimming to the right is engraved with sweeping lines. The fish's mouth is open, there are two fins on each of the back and belly, and the tail fin is forked. The gills separate the head from the fish's spotted body. Under the fish you can read the remains of an inscription with the letter E or F, which is probably the remains from a drinking toast.

Today, over 30 examples of these fish cups are known from different provinces. The representation of the fish is so similar that one can assume that they were decorated in the same workshop and then delivered to the provinces.