My little anvil has been without a suitable mounting stump for some time. A friend donated a perfectly sized one but one of the end faces was out of square. Rather than mounting it on a faceplate and facing the end, I clamped it to the lathe bed and used the tailstock centre to hold it firmly.
With the column clamps loose and a fly cutter in the collet chuck, the Centurion becomes a swing arm router! A few passes and jiggling about an I had a fairly flat, square face. Four long 10mm coach screws were used to mount the 150mm long rail section.
I use it on a concrete floor, not the table in the photo. It is more convenient and has a nice ring to it, much better than the "dong" from the flat face on the back of my vice (vise).
Ian