In addition to the authority of agents in general, a factor has actual authority for the principal, unless specially restricted, to:
(1) insure property consigned to the factor uninsured;
(2) sell on credit anything entrusted to the factor for sale, except things that it is contrary to usage to sell on credit, but not to pledge, mortgage, or barter the things; and
(3) delegate the factor's authority to the factor's partner or servant but not to any person in an independent employment.