Paper      P50      
Date of use1768; 1773
Paper millGiacomo Bertolazzo, Religione, Toscolano?
CommentaryNo mark and countermark.

Watermark P50A

Cornermarklily / GB
SourceA Wn Mus.Hs._10073_1_fol229v230r223v224r
no countermark
cornermark sheet

Twinmark P50B

Cornermarklily / GB
SourceA Wn Mus.Hs._10073_1_fol209v210r211v212r
no twin countermark
twin cornermark twin sheet

Copyists and works

Copyists using paper P50WK68C, WK73Q
Scores written on paper P50Philidor_17890, Salieri_10073
Staff ruling on paper P5012/186C