The tax collector, as soon as he has made the publication required in Sections 3.28.335 through 3.28.350 must file with the county recorder and the city clerk, respectively, a copy of the publication, with an affidavit attached thereto that it is a true copy of the same, that the publication was made in the official newspaper or supplement thereto, stating its name and place of publication and the date of each appearance, which affidavit is primary evidence of all facts stated therein. (Prior code § 6.04.710)