Processions with Sacred Images in 10th Century Monastery of Cluny, France

 

The late 10^th century “Liber Tramitis”, describing the liturgical ordo of the great French monastery of Cluny speaks about the carrying of an icon of Our Lady holding Our Lord on the Feast of Purification [Hypapante]. They speak of a ‘tabula’, which is a flat board, on which, in this case, is painted Our Lady holding Our Lord. After the candles have been blessed before Mass, it says: 

The Cantor begins the Antiphon, 'A light for the revelation,' then he proceeds to say others when they gather, namely, "Hail, full of grace,' 'Do Thou adorn Thine Incense,' 'And he received.'  Also they [i.e. the monks] ought to receive the tabula to carry from the oratory, on which is depicted the image of Our Lord and His Mother.  For just as they venerate thus they are to return in order into the cloister, just as we explain thus [there follows an order of procession]..." [page 24] 

Likewise, in describing another processional, it states that on the Feast of the Apostles, the Procession is similar to that of the Nativity, except the special tabulam "wherein is affixed the image of Our Lord Jesus Christ and His Mother" is not carried in procession on the FEasts of the Apostles. [page 87]   

However, on the Feast of the Assumption [Dormition] four senior monks in sacred orders carry minor relics and also they "accept the tabulam with the image of Our Lord Jesus Christ and His Mother." [page 100]  

https://www.google.com/books/edition/Consuetudines_monasticae/mAg9AAAAIAAJ?hl=en&gbpv=1

There certainly was liturgical usage for sacred images, specifically what we would clearly identify as flat-panel iconography [i.e. 'tabulam' means 'board', on which is depicted the Lord and His Mother], including veneration, in the Pre-Schism West.  Cluny was perhaps the largest and most prominent monastery in all of France, if not Western Europe in the 10th and early 11th centuries.