Claves Insulje
Defined in 2 dictionaries — Black's (1910), Burrill (1850)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
In Manx law. The keys of the Island of Man or twelve persons to whom all ambiguous and weighty causes are referred.
A New Law Dictionary and Glossary
Alexander M. Burrill · 1850
Lat. The keys of the island. A term applied, in the Isle of Man, to twelve persons to whom all doubtful and important cases were referred. Cowell, Blount.