Still regarded as the standard reference for Calvin’s writings and an indispensable resource for Reformation studies.

Ioannis Calvini Opera quae supersunt Omnia. Ediderunt Guilielmus Baum Eduardus Cunitz Eduardus Reuss Theologi Argentoratenses. Volumen I (-LIX).

Monumental critical edition of all extant works of the Reformer John Calvin (1509–1564), issued in 59 volumes as part of the Corpus Reformatorum.
Includes theological treatises, sermons, commentaries, and correspondence in Latin and French, with scholarly annotations.
Still regarded as the standard reference for Calvin’s writings and an indispensable resource for Reformation studies.

Some occasional browning and/or staining, but overall in good condition.