Die Hauptsumma der christenlichen Religion nach Ordnung des Catechismi gsangsweis verfasset und aussgesetzt ...
A 1638 Swiss religious songbook by Johann Caspar Maurer, printed by Johann Jacob Bodmer, setting the principal points of Christian doctrine in the order of the catechism for lay readers. The three pictures are faint, heavily inked impressions of a single small woodcut showing a heraldic-style shield held by a crested figure, with a Zurich city library stamp in the third; a designer might take from them the simple bold silhouette and the way a shield and crest read as one emblem.
