I don’t know about the Holy See, but I do know that the Ordo tends to vary from country to country as well as from Province to Province within each country. For instance, if you are in the Diocese of Richmond, VA, then you would use the Ordo of the Province of Baltimore, since there are feasts which are observed within the province and individual dioceses within it that may not be observed elsewhere.
You can find the Ordos for the United States here:
The Holy See does publish one. As I said in my OP I have actually seen it.
That will depend where you are. In England and Wales they are published by each diocese, not by province or by the episcopal conference. Each one contains the celebrations in the General Calendar, the particular calendar for England or Wales, and the particular calendar of the diocese.
I think they do it for both. The one I saw in the bookshop was for the Ordinary Form. Since you have helped me to find the name of the publication I have done a search for it on Google. The only ones that I can find on the Net to download are for the Extraordinary Form.