Where a tax deed is regular on its face and has been of record for twenty-three years or longer, the title conveyed thereunder can be considered as marketable, if the affidavit of possession as prescribed by SDC Supp. 51.16B07, as amended by Ch. 266 of the Laws of 1957, SDC 1960 Supp. 51.16B07 [§ 43-30-7] is made and filed for record.
SDCL app TO CHAPTER 43-30 § 7-08