Cat and Mouse Replica Medieval Badge, Boxed With Brief Historical Descripition

This unusual and rather naive badge depicts a cat with a mouse in its mouth, under which is the legend visis mu (here is the mouse). The design must have been well known at the time, as apart from badges it can also be found in medieval bestiaries and misericords.
Although its meaning is not clear, it is possible that it is being used as an allegory for the Devil catching sinners. Strangely the cat has two tails, and although in symbolism the number two can signify sin and the corruptible, the exact meaning of the two tails is mysterious.

Date: This dates from the 15th century.
Size: Width 41mm x Height 31mm
A cat with a mouse in its mouth.
Fixing / Fastner: Pin and Clutch