The hand, unless we are told otherwise is a dexter (right) hand shown palm outwards and fingers upwards.A Glossary of Terms used in Heraldry, J.B. Parker, 1894 P305. It demonstrates faith, sincerity and justice, and in the form of two right hands clasped can mean union or allianceThe Symbolisms of Heraldry, W Cecil Wade 1898 P92. There is a special form called the “Hand of Ulster” which is a sinister hand gules on an argent background (a left hand, red upon white). Originally the Badge of Ulster, the Province of Northern Ireland, it has come to be used as an addition to existing arms, in an escutcheon (small shield) or canton (small square) to indicate that the holder is also a Baronet.Heraldry Historical and Popular, Charles Boutell, 1864 P56