EntityQ2626649· pop 8· linked from 9 articlesday shapesSign in to saveMasthead signals showing vessel statusConnectionsWayback MachineEntityrhombusEntityInternational Maritime OrganizationEntityUnited States Coast GuardEntitynavigation lightEntityInternational Regulations for Preventing Collisions at SeaEntityCategoriesInternational Maritime OrganizationLaw of the seaMaritime signallingNautical terminologyNonverbal communicationOptical communications