Murfatlar 20
The inscription M 20 is incised on a fragment of the chapel E3 and consists of 7 characters. A facsimile of the inscription was first published by D. Bogdan (Bogdan D. 1960). In Beshevliev it is number 10 (Beshevliev, V. 1977). A photograph of the inscription was published by Tryjarski (1981). Attempts to decipher it were made by Dobrev and Voynikov.