4(1)If a bailee is in possession of goods which he has held as custodian, and his obligation as custodian has come to an. end, the notice may be given at any time after the ending of the obligation, or may be combined with any notice terminating his obligation as custodian.
(2)This paragraph shall not apply to goods held by a person as mercantile agent, that is to say by a person having in the customary course of his business as a mercantile agent authority either to sell goods or to consign goods for the purpose of sale, or to buy goods, or to raise money on the security of goods.