Should any person, within six months after the day of the sale of a bicycle, make claim to such bicycle, such sum of money as may be in the hands of the City Treasurer, less the sale and advertising costs, which has been derived from the sale, shall be paid over to such claimant upon proof of his right to receive the same. In no event shall any claim be considered unless it shall be presented to the City Treasurer in writing, under oath, and before the expiration of six months from the date of sale. (Code 1962, § 11-21; Ord. No. G-1154, § 1; Ord. No. G-1784, § 2)