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Original: "Die Religion innerhalb der Grenzen der bloßen Vernunft." This is one of Kant's major works, exploring how religious faith can be understood through human rationality rather than just revelation.
These letters (A and B) refer to the first and second original printings of the book, which contain slight variations.
Kehrbach (1846–1905) was a noted German scholar and pedagogue known for editing definitive versions of philosophical texts.
A circular emblem or publisher's device is centered in the lower third of the page, consisting of a monogram or stylized figure within a double-bordered circle.
Reclam is a famous German publishing house founded in 1828, known for making classic literature and philosophy accessible to the general public.