The Roman period is here sub-divided into the Reece periods as used by the Portable Antiquities Scheme.
‘Roman Quadrantes found in Britain, in light of recent discoveries recorded with the portable antiquities scheme’, F. McIntosh and S. Moorhead, 81 (2011), 223-230
Two Denarius hoards from Birnie, Mora, N. M. McQ Holmes, vol. 76 (2006)
The monumental volume I of the Roman Provincial Coinage series, by A. Burnett, M. Amandry, and P.P. Rippolès, covering the period from the death of Caesar to Vitellius (44 BC–AD 69), is available online with all its supplements: rpc.ashmus.ox.ac.uk/search/browse?