Which preposition to use with plinth

of Occurrences 2%

In the Cathedral, on the plinths of the columns in the outer aisles, are several notices to the effect that "whoever speaks to women, either in the nave or the aisles, thereby puts himself in danger of excommunication."

at Occurrences 1%

The cinque-foil cloister arches, the fillets that bind the clustered shafts of the pillars, the leaf ornaments of the plinths at their base all speak of a luxuriant sense of beauty and grace, of a spirit of pure and admirable artistic work.

with Occurrences 1%

One of the members of our party struck the plinth with a dhotar to awaken the echoes which eddy loudly round the vault and rouse the wild birds that have built their nests in the holes and cornices.

Which preposition to use with  plinth