In the present study, the effect of a novel compound, sodium (Z)-4-oxo-4-p-tolyl-2-butenoate (SOTB), has been evaluated as a corrosion inhibitor for an antique bronze object. Stored or displayed archaeological bronze artifacts suffer from corrosion processes leading to destruction in uncontrolled environments; especially chloride ions. Consequently, developing novel and safe inhibitors to protect bronze is of a great importance. The corrosion inhibition efficiency of leaded bronze was evaluated in 3.5% NaCl, using the electrochemical techniques. The electrochemical study proved that the highest inhibition efficiency is achieved at 200 ppm of about 92%. The results indicated that the protection occurs via the adsorption of the SOTB on the metallic surface, and the adsorption energy has been calculated. The obtained promising results at 200 ppm are applied to four archaeological statues made of leaded bronze from Yemen from Gabal Al- Lawd site, Al-Gawf. The surface was subjected to SEM, EDX, IR and XRD to characterize the corrosion products and the effect of the inhibitor on the corrosion of leaded bronze objects.