Dissertatio Historica De Festis Virginis Mariae, quam ... publico bonorum examini ... offert ... Petrus Petr. Leufstedt ... in diem XXX Apr. MDCCLX, etc.
Leufstedt, Petrus Petr.
Londini Gothorum, 
[1760]
In the date the "30. Apr." has been deleted and "17 May" added in manuscript.