- Initial M-1 (Ungler 1512)
- Initial M(Eridianus). In Proclus, Procli Diadochi Sphera Thomae Linacro Britanno Interprete, Thomas Linacre (translator), Cracow: Florian Ungler (printer), 5 July 1512 (Warsaw, BN), fol. Biir ◼
- Initial M(Ora). In Lectura Super Titulo De Regulis Juris Libro VI, Cracow: Florian Ungler (printer), 12 July 1512 (Kórnik, BK PAN), fol. Diir ◼
- Initial M(Eridianus). In Jan of Stobnica, Introductio in Ptholomei Cosmographia[m] ..., Cracow: Florian Ungler (printer), 1512 (Cracow, BJ), fol. vv ◼
- Initial M(Arem quod). In Jan of Stobnica, Introductio in Ptholomei Cosmographia[m] ..., Cracow: Florian Ungler (printer), 1512 (Cracow, BJ), fol. xiir ◼
- Initial M(Eridianus). In Jan of Stobnica, Introductio in Ptholomei Cosmographia[m] ..., Cracow: Florian Ungler (printer), 1513 (Warsaw, BN), fol. vv ◼
- Initial M(Are quod). In Jan of Stobnica, Introductio in Ptholomei Cosmographia[m] ..., Cracow: Florian Ungler (printer), 1513 (Warsaw, BN), fol. xiir ◼