First page of the Basel pamphlet printing of the Disputatio pro declaratione virtutis indulgentiarum (1517; printer not named on the page, usually identified as Adam Petri): the heading Amore et studio elucidandae veritatis and theses i to xii, numbered in Roman numerals in the margin. Universitätsbibliothek Basel, via e-rara.Martin Luther; printed at Basel, 1517, 1517 · Public domain · Wikimedia Commons
