The manhole covers in Graz show the city arms. It is a Panther with flames from all body openings. The depiction is similar to the Styrian coat of arms. However, the modern Styrian Panther has horns and only one flame from his mouth. [German]
Sources / More info
- Steirisches Landeswappen (Wikipedia)
- Grazer Stadtwappen (Wikipedia)
- Panther (Wikipedia)