I found this altar on Wednesday, in the church of St Apollinare Nuova in Ravenna (a town I have long wanted to visit; finally I have got there). It lives in a side chapel dedicated to the fallen of World War 1. There is scarcely room for a corporal in the central well, and those 'missal stands' (at least the Gospel side one) must require the priest to crane his neck painfully. Those plaques on the back really are altar cards, though scarcely legible.
I wonder whether anyone ever did succeed in celebrating Mass here.
It reminds me of my own church in Shoreham: an architect or artist with only an idea of his own artistry and conception, and never a thought as to function or, more importantly, to tradition, or even the 'hermeneutic of continuity'. He saw something that he could pontificate about in stone, and did it. His own idea, his dream, his vision, was supreme; nothing and nobody else was important, not even those who would pay for and/or have to use the creation.
The romantic movement has a lot to answer for!