http://www.bbc.co.uk/news/uk-england-somerset-17480016
http://www.romanbaths.co.uk/whats_on/beau_street_hoard.aspx
from the photos it appears that coins date prior to CE 270 which may be the date of deposition. The coins are Valerian, the Philips and Otacilia and Gordian III. It may be a typical mixed hoard from this period (inclusive of denarii) though the photo only depicts antoniniani from what I can see.
