Our statistics webpage (see link in bottom lh panel), updated almost daily, reflects the current coverage.
While it is heartening to see just how comprehensively recorded some of the bell details are (especially founder and date), it is nowhere near so good a picture when one looks at the two very recently added figures for fundamental pieces of information, namely: diameter, and canon detail. It is similarly the case for the nominal.
We take this opportunity to encourage the submission of reliable data so that the effort expended to include the pNBR within the Dove website can be considered really worthwhile.