foundInBacker-Sommervogel. — BN Cat. gén.. — DBF. — Le Jubilé de 1854 et les enfants de Marie / par Chaignon. - Angers, 1854.. — KAlfBN. — BnF online. — Sommervogel, Carlos: Bibliothèque de la Compagnie de Jésus
imprintSourceLe ciel ouvert par le zèle pour le salut des âmes / par le R. P. Chaignon, 1882
Le salut facilité aux pécheurs par la devotion au trés-saint ...
Monochrome version of the IHS emblem of the Jesuits.The design of the emblem is attributed to Ignatius of Loyola (1541).
the cross is here drawn as formy fitchy; this is not necessarily part of the design, early modern depictions sometimes show a plain cross, or various baroque ornamentations
the three nails are sometimes shown as piercing a heart
the alternating straight and wavy rays are found in historical specimens, but not necessarily, and sometimes with two or three straight rays separating wavy rays.
the number of rays is often 32 as here, but sometimes also 12, 16 or 24.
the emblem is sometimes surrounded by the inscription et vocatum est nomen eius Iesus (Luke 2:21)
[Moranski / Own work -- Public domain -- http://commons.wikimedia.org/wiki/File:Ihs-logo.svg]