The Desborough Mirror has a reflecting surface with green patination; the back of the mirror is highly decorated. The mirror is made from three pieces — a cast handle, the main mirror plate and a tubular binding strip around the edge. The pattern is very complex. It has a symetrical outline in the form of a lyre with flanking coils. The pattern may have been laid out using a pair of compasses. Parts of the decoration are engraved, using a graver, with a basket-weave pattern and hatched texturing to make the pattern stand out.