One famous example is his Sudarium of Saint PERSON@1 -LRB- NUMBER@1 -RRB- , an engraving of the face of PERSON@2 made from a single spiraling line that starts at the tip of PERSON@2 's nose .

One example is his Sudarium of Saint PERSON@1 , an engraving of the face of PERSON@2 from a single spiralling line that starts at the tip PERSON@2 's nose -LRB- pictured -RRB- .
