A few years ago I went looking for propers for Scotus' feast day. I found my way to the website of the Diocese of Cologne, to this page. Once upon a time all dioceses did something similar. I have a Breviary printed at Tours in 1954 with the "Officia propria Archidiœcesis Birminghamiensis", all in Latin, bound in as a supplement at the back. This is not some shonky "tipping in". The whole thing is a robust construction which I foresee will survive for many years. I also have a Supplementum ad Breviarium et Missale Romanum Adjectis Officiis Sanctorum Angliae. This was printed by Messrs Keating & Brown, printers to the Vicar Apostolic, in 1823 – six years before the Catholic Relief Act.
Nowadays when official repression is nothing like that in the first quarter of the nineteenth century, and when what repression which exists is often gleefully cheered on – if not initiated – by well placed gangs of soi-disant Catholics, nothing like the same effort is put into preparing native liturgical books. You are expected to cull the the propers from the Common of Saints. Birmingham produces a staple bound A4 book with propers for Mass – in English mind – but that is about it.
So this production by the Diocese of Cologne is remarkable. It is in Latin. It is laid out for printing. Look rubrics! In red! The volumes correspond to the four volumes of Liturgia horarum not to the three volume Divine Office used in most English speaking Commonwealth countries. The latter is not without fault, mostly that you spend more than half the year with the (brown) volume iii in your hands which therefore deteriorates much more quickly. With Liturgia horarum after Epiphany and the end of volume i, you usually have a few weeks using volume iii before moving back to volume ii for Lent and Easter. Only after Pentecost is it a straight run through volumes iii and iv.
Cologne Supplement to the Office for Advent and Christmas [pdf]
Cologne Supplement to the Office for Lent and Easter [pdf]
Cologne Supplement to the Office for Weeks 1-17 [pdf]
Cologne Supplement to the Office for Weeks 18-34 [pdf]
The office for Blessed John Duns Scotus is in volume iv pages 53-55 of the pdf.
This is probably something all dioceses should be doing but so far as I know Cologne is the only one.