Elements that would suggest this is the pontifical Lyon rite are the gremial being carried by two coped attendants before the prelate and the fully vested priests before him.
For more on these interesting rites and ceremonies, do see the following posts:
Ceremonial Details of the Pontifical Mass in the Rite of Lyons - Part I: Mass of the Catechumens
Rare Video Footage of the Pontifical Liturgy According to the Rite of Lyons
There you can see further illustrations and photos.
It is my hope that I will some day be able to pursue the second and final part of "Ceremonial Details of the Pontifical Mass in the Rite of Lyons" for which I have still further photographs to share with our readers in addition to further ceremonial details.
