The main difference is the use of a "notched" tag or of a "regular" tag.
The Army used the Army Serial Number exclusively until the end of 1967 when the use of Social Security Numbers (9 digits) was introduced.
The lesson here is to put the good things about you at the forefront. Disclosing your interests makes for effortless conversations and paints a clearer picture of the type of person you are. According to a study from Ok Cupid and Match.com, it’s best if some of the interests below are included because it’s what the popular online dating kids do.