In 1992 the Monumental Brass Society began to publish a new fully illustrated "County Series" for England, edited by William Lack, Martin Stuchfield and Philip Whittemore, to cover brasses of all periods, and intended to supersede Stephenson. This has progressed county-by-county on an alphabetical basis, beginning with "Bedfordshire" in 1992, and reaching "Huntingdonshire" by 2012. ("Cumberland and Westmorland" were published as a single volume in 1998; while "Essex" was published in two volumes in 2003.) For those counties that have been published, the County Series volumes are now regarded as the definitive catalogue. Where appropriate, entries retain Stephenson's "M.S." numbers.