Along what may be the upper of two lines of lettering I can discern no more than a "C", and further on an "S"; along the lower, simply traces of ink. Inspection of the parchment itself (March 2003) offered no further insight.
References
? = BAtlasTritonis? L. 37 D2ItMiller957 Lacvs Nvsaptis vel Nilvdicvs