The Lilienpfennig was a type of Late Medieval pfennig from the German Free Imperial City of Strasbourg which was stamped on one side with the image of a fleur-de-lys.
[1][2] These silver pfennigs were the forerunners of the bowl-shaped Schüsselpfennig and were struck from the beginning of the 14th century.
They had a diameter of 14 to 17 mm and weighed about 0.32 to 0.45 g. The Lilienpfennigs were one of the so-called 'eternal pfennigs' (Ewiger Pfennig) because, unlike most bracteates, they did not have to be exchanged regularly for a fee.
[3] The planchet used for striking the coin was larger than the coin die itself, resulting in a broad, unstamped perimeter that bent up like a plate due to the die pressure.
It is also recorded that the upturned rim was a protection against clipping at that time.