14:00Unearthing MysteriesSeries 3Episode 4: San Galgano and the Sword in the StoneBBC Radio 7 Duration: 30 minutes Wed 7th Jul 2010, 14:00 on BBC Radio 7Professor Aubrey Manning explores Italy's St Galgano where a story of severed hands is intertwined with the search for a tomb.GenresFactualBrandUnearthing MysteriesSeriesUnearthing Mysteries: Series 3 Source: BBC Online