real property, any judgment, mortgage or other lien or encumbrance on the real property that is placed of record prior to the date the personal property tax becomes a lien on the real property has priority over the personal property tax lien. [Amended by 1953 c.707 ??2; 1955 c.720 ??3; 1981 c.346 ??1; 1985 c.794 ??1; 1991 c.459 ??249; 1991 c.903 ??4; 1997 c.541 ??293; 2001 c.42 ??1; 2001 c.229 ??1