“An unconditional assignment of a note given for the purchase of personalty, wherein the seller retains title to the property sold until the pm-chase-money is paid, does not extinguish the security, but carries it along, and the title retained by the seller becomes vested in the assignee until the purchase debt is paid.” Townsend v. Southern Product Co., 127 Ga. 342 (56 S. E. 436). Judgment reversed.