are discovered adjacent to an
obvious alteration, it is sometimes possible to arrive at a very clear date for
the objects, but rarely to a precise year.
The survey for this project was carried out by post and a total of 661
museums, archaeological units and individuals were consulted from throughout England, Scotland, Wales and Northern Ireland. Owing to financial
constraints the survey did not include every museum in each county and it
is likely that some finds have been missed as a result. Only the figures for
England have been calculated and, out of a