Marine signal flag: Letter "I" (India) Halamahera Sea Introduction Definition of insurable Introduction Definition of insurable interest Attachment of interest Partial interest – Lost or not lost – Proprietary interest – Freight – Premium – Profit – Defeasible and contingent interests – Respondentia – Consignee’s interest – Liability interest – Underwriter’s insurable interest – Marine insurance contracts that are invalid in relation to insurable interest ocean crossings Marine signal flags are international signals used by ships at sea to spell out short messages International maritime signal message: "I am altering my course to port"