Subsequently A finds the original certificate and, either because he has forgotten about the sale to B or because he is a rogue, then purports to sell the shares to C. The company will rightly refuse to register C whose only remedy will be against A (who may by this time be a man - of - straw) unless he can successfully invoke against the company the so - called doctrine of estoppel by share certificate.
Subsequently A finds the original certificate and, either because he has forgotten about the sale to B or because he is a rogue, then purports to sell the shares to C. The company will rightly refuse to register C whose only remedy will be against A (who may by this time be a man who sell straw) unless he can successfully invoke against the company the so - called doctrine of estoppel by share certificate.