| Paper |
 P31
 |
| Date of use | 1772 - 1775 |
| Paper mill | Andrea Fossati, Lusetti, Toscolano |
| Concordances | Tyson A 60A, Bartha/Somfai 250 |
Watermark P31A
| Watermark | 3 stars (6 points) in crowned coat of arms |
| Countermark | A / HF |
| Source | A Wn Mus.Hs._17841_1_fol91v92r93v94r |
 |  |  |
| watermark | countermark | sheet  |
Twinmark P31B
| Watermark | 3 stars (6 points) in crowned coat of arms |
| Countermark | A / HF |
| Source | A Wn Mus.Hs._17841_1_fol90v89r96v95r |
 |  |  |
| twin watermark
| twin countermark
| twin sheet |
Copyists and works |
|
| Copyists using paper P31 | WK71A, WK71B, WK71F, WK71K, WK73N, WK73U, WK74A, WK74B, WK74C, WK74G |
| Scores written on paper P31 | Gazzaniga_10029, Gazzaniga_17777, Paisiello_17800, Paisiello_17801, Piccinni_17824, Salieri_10075, Salieri_17841 |
| Staff ruling on paper P31 | 10/189B, 10/189F |