Sadly, too much for me to be able to add it to my own library of liturgical reference resources, but perhaps someone else might like it for themselves. From Pro Multis books in the USA, a 1759 Missale Romano-Benedictinum -- or in other words, the Roman Missal as published for a Benedictine Monastery (and perhaps with the inclusion of more saints of the Order in the calendar). It looks to be in very fine shape. Possibly a bit over-priced (though I'm not certain) but at least having a bit of interest being "Benedictine" (there was no Benedictine rite or use incidentally, other than the Breviarium Monasticum), and for being in such fine shape.