A French gilt brass quarter repeating alarm carriage clock, circa 1890

4.5-cm chapter ring with Arabic numerals signed CH.Dubret Dijon, in a matted gilt surround with alarm subsidiary below, movement with platform ratchet tooth lever escapement, split compensated bi-metallic balance, rack half hour striking and trip quarter repeating on two gongs, alarm on a single gong  gilt brass cornice case surmounted by a shaped carrying handle