- Initial I-1 (Ungler 1530; Unglerowa). Part of Set of ornamental initials (Ungler 1530)
- Initial I(Vdicium). In Preclarus et insignis Tractatvs Docens Modum legendi abbreuiaturas..., Cracow: Florian Ungler (printer), 1524? (Kórnik, BK PAN), fol. Bviir ◼
- Initial I(Vsticia). In Preclarus et insignis Tractatvs Docens Modum legendi abbreuiaturas..., Cracow: Florian Ungler (printer), 1524? (Kórnik, BK PAN), fol. Dviiiv ◼
- Initial I(Am). In Mattiolo Mattioli, Tractatus clarissimi Philosophi Et Medici Matheoli Perusini de memoria augenda per regulas & medicinas, Cracow: Florian Ungler (printer), after 22 October 1530 (Warsaw, BN), fol. A2r ◼
- Initial I(N primis). In Gáspár Pesti ( attr.), Sermones exhortatorij ad viros sacre religionis decore ornatos, breues & vtiles, voluptatibusq[ue] huius vitae miserrime abrenunctiantibus, Cracow: Florian Ungler (printer), 1531, fol. 20r
- Initial I(N primis). In Gáspár Pesti ( attr.), Sermones exhortatorij ad viros sacre religionis decore ornatos, breues & vtiles, voluptatibusq[ue] huius vitae miserrime abrenunctiantibus, Cracow: Florian Ungler (printer), 1531 (Wrocław, Oss.), fol. 20r ◼
- Initial I(N nomine). In Jan Cervus, Farrago actionu[m] ciuilium Iuris Maydeburgensis ..., Cracow: Florian Ungler (printer), 1531 (Wrocław, Oss.), fol. 40r ◼
- Initial I(N primis). In Szymon of Łowicz, Enchiridion Phisiognomiae co[m]pe[n]diosu[m] cu[m] figuris facieru[m], Cracow: Florian Ungler (printer), 1532 (Cracow, BJ), fol. [26r] ◼
- Initial I(N ephemeridibus). In Michał of Wiślica, Usus almanach seu ephemeridu[m] interpretatio ..., Cracow: Florian Ungler (printer), 1532 (Cracow, MNK, BCzart), fol. Biiir ◼
- Initial I(N omnibus). In Michał of Wiślica, Usus almanach seu ephemeridu[m] interpretatio ..., Cracow: Florian Ungler (printer), 1532 (Cracow, MNK, BCzart), fol. Cviiiv ◼
- Initial I(N omni). In Michał of Wiślica, Usus almanach seu ephemeridu[m] interpretatio ..., Cracow: Florian Ungler (printer), 1532 (Cracow, MNK, BCzart), fol. Fiiv ◼
- Initial I(N ephemeridibus). In Michał of Wiślica, Usus almanach seu Ephemeridu[m] interpretatio ..., Cracow: Florian Ungler (printer), 1532 (Wrocław, Oss.), fol. Biiir ◼
- Initial I(N omnibus). In Michał of Wiślica, Usus almanach seu Ephemeridu[m] interpretatio ..., Cracow: Florian Ungler (printer), 1532 (Wrocław, Oss.), fol. Cviiiv ◼
- Initial I(N omni). In Michał of Wiślica, Usus almanach seu Ephemeridu[m] interpretatio ..., Cracow: Florian Ungler (printer), 1532 (Wrocław, Oss.), fol. Fiiv ◼
- Initial I(Sta regula). In Lectura super titvlo De Regvlis Ivris Libro Sexto, Cracow: Florian Ungler (printer), ca 1531 (Kórnik, BK PAN), fol. 9v ◼
- Initial I(Ste sit). In Lectura super titvlo De Regvlis Ivris Libro Sexto, Cracow: Florian Ungler (printer), ca 1531 (Kórnik, BK PAN), fol. 40v ◼
- Initial I(Vvenis quidam). In Gergely Gyöngyösi, Decalogus de beato Paulo primo heremita ..., Cracow: Florian Ungler (printer), 1532 (Kórnik, BK PAN), fol. Aviiiv ◼
- Initial I(N Scorpione). In Szymon of Łowicz, Girolamo Manfredi, Centiloquium de medicis et infirmis decerptu[m] ex penetralibus Astrologiae ..., Cracow: Florian Ungler (printer), 1532 (Wrocław, Oss.), fol. Fiiiv ◼
- Initial I(Nteriectio). In Jan Cervus, Institvtiones Grammaticae Ioannis Cerui Tucholiensis ..., Cracow: Florian Ungler (printer), 1533 (Warsaw, BN), fol. Xixr ◼
- Initial I(N OMNIBVS). In Compendiaria Conscribendarum Epistolarum ratio in gratiam adolescentum studiosorum a Christophoro Hegendorphino et co[n]scripta et recens edita ..., Cracow: Florian Ungler (printer), 1533 (Warsaw, BN), fol. Fviir ◼
- Initial I(DONEVS). In Jan Cervus, Syntaxis Ioannis Cervi Tvcholiensis. Accessit item Aelij Donati ... De barbarissmo libellus, Antonii Mancinelli Veliterni de varia constructione thesaurus, Cracow: Florian Ungler (printer), 1533 (Warsaw, BN), fol. Lir ◼
- Initial I(N HAC QVINTA). In Jan van Campen, Ex varijs libellis Eliae Grammaticorum omnium doctissimi huc fere congestu[m] est ..., Cracow: Florian Ungler (printer), 25 May 1534 (Warsaw, BN), fol. Ciiir ◼
- Initial I(Nterrogatoria). In Grzegorz Snopek of Szamotuły, Processus Juris Brevior ..., Cracow: Helena Unglerowa (printer), May 1537 - December 1537 (Cracow, BJ), fol. 47v ◼
- Initial I(Mpetrans). In Grzegorz Snopek of Szamotuły, Processus Juris Brevior ..., Cracow: Helena Unglerowa (printer), May 1537 - December 1537 (Cracow, BJ), fol. 37r ◼
- Initial I(Nterrogatoria). In Grzegorz Snopek of Szamotuły, Processus Juris Brevior ..., Cracow: Helena Unglerowa (printer), May 1537 - December 1537 (Cracow, BJ), fol. 78v ◼