Over the years, the NLM has brought forward a number of images from papal liturgies and Vatican liturgical life in the usus antiquior -- i.e. from before and during the Council.
Many readers as well have shared images they have themselves found -- and we thank you for doing so.
I'd like to encourage our readership further in this task with a specific appeal:
If you have images you have culled from books, the internet, or otherwise, which are of of liturgical life in the Holy See from before or during the Council, please email them to the NLM, or use the comments to point to their whereabouts online.
These sorts of images are always useful for study and exploration.