Your right the ring has nothing to do with it being a servicable anvil, as youmight already be aware my anvil is a RR coupler. it works great! while I know full well a "london pattern" anvil is not a requirement to have a servicable anvil, I want one. until I get one I have a great anvil in my RR coupler.
as for the ring, I was just curious how well it rings, being a good size chuck of steel. of course the ring has nothing to do with the quality of an anvil, atleast not by itself, there are many other factors involved, like composition, damage, chains, ect ect.
nice anvil, and I could still use one of those. :D