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Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

The Tiniest Prayer Books: the Key of Heaven

Veronica Brandt · September 19, 2020

When Jeff Ostrowski mentioned little tiny hand missals in his photo from World War II, I knew I had to show him these tiny treasures. I don’t have much background information on these as they came from secondhand bookshops. They seem to be fairly common, with a few friends on Facebook recognizing them. Some have treasured copies from their grandparents. Both of mine are made in Belgium but bear the names of Australian publishers.

Two copies of Key of Heaven
Two copies of Key of Heaven: 1905 and 1939.

They are in fairly poor condition. One particular seems to have been well used at Mass as the Method of Hearing Mass is particularly stained and worn. To give some idea of the scale, here are some pictures for comparison with some other small books: The Madonna Missal, Manual of the Children of Mary and The Imitation of Mary. Hmmm… quite a Marian theme going on here.

Now, let’s look inside! This first collection of photos comes from the older and smaller of the two. This one is dated 1905. The type is a little smaller and has an elegant red border around each page.

The other one comes from 1939 and has larger type and more illustrations. The front cover is detached and has a crucifix embedded inside with the indulgenced Prayer before a Crucifix printed on the facing flyleaf. It seems to be some sort of Mother of Pearl material used to make the cross. See here for a comparison with a more modern book using white plastic instead.

A quick web search revealed a similar such book under the same title is still available. It doesn’t look quite the same – for one thing this new edition is much larger measuring 6″x4″ whereas these older books are a tiny 4″x2.25″. It sounds like the idea is the same though.

It makes sense, when Mass and the Readings are in Latin, having a portable copy of your own vernacular translation makes sense. I wonder if Fr Gereon Goldman had such a book in German. I’ve heard stories of pocket prayer books or Bibles stopping bullets in wartime. There are even some made with a steel plate cover called Heart Shields.

All this goes to show that people did care about praying the Mass with understanding back in the days before ICEL.

Opinions by blog authors do not necessarily represent the views of Corpus Christi Watershed.

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Filed Under: Articles Last Updated: September 19, 2020

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About Veronica Brandt

Veronica Brandt holds a Bachelor Degree in Electrical Engineering. She lives near Sydney, Australia, with her husband and six children.—(Read full biography).

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Corpus Christi Watershed

President’s Corner

    Music List • (2nd Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I created for this coming Sunday, which is the 2nd Sunday of Lent (1 March 2026). If such a thing interests you, feel free to download it as a PDF file. This feast has magnificent propers. Its somber INTROIT is particularly striking—using a haunting tonality—but the COMMUNION with its fauxbourdon verses is also quite remarkable. I encourage all the readers to visit the feasts website, where the Propria Missae may be downloaded completely free of charge.
    —Jeff Ostrowski
    Like! Like! Like!
    You won’t believe who recently gave us a “like” on the Corpus Christi Watershed FACEBOOK PAGE. Click here (PDF) to see who it was. We were not only sincerely honored, we were utterly flabbergasted. This was truly a resounding endorsement and unmistakable stamp of approval.
    —Jeff Ostrowski
    Which Mass?
    In 1905, when the Vatican Commission on Gregorian Chant began publishing the EDITIO VATICANA—still the Church’s official edition— they assigned different Masses to different types of feasts. However, they were careful to add a note (which began with the words “Qualislibet cantus hujus Ordinarii…”) making clear “chants from one Mass may be used together with those from others.” Sadly, I sometimes worked for TLM priests who weren’t fluent in Latin. As a result, they stubbornly insisted Mass settings were ‘assigned’ to different feasts and seasons (which is false). To understand the great variety, one should examine the 1904 KYRIALE of Dr. Peter Wagner. One should also look through Dom Mocquereau’s Liber Usualis (1904), in which the Masses are all mixed up. For instance, Gloria II in his book ended up being moved to the ‘ad libitum’ appendix in the EDITIO VATICANA.
    —Jeff Ostrowski

Quick Thoughts

    Extreme Unction
    Those who search Google for “CCCC MS 079” will discover high resolution images of a medieval Pontificale (“Cambridge, Corpus Christi College, MS 079”). One of the pages contains this absolutely gorgeous depiction of the Sacrament of Extreme Unction.
    —Corpus Christi Watershed
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“A theologian who does not love art, poetry, music and nature can be dangerous since blindness and deafness toward the beautiful are not incidental: they are necessarily reflected in his theology.”

— Josef Cardinal Ratzinger (Interview, 1985)

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