ENCLS
| Date | Clue |
|---|---|
| 2019-12-11 | Ltr. accompaniers |
| 2012-08-30 | S.A.S.E.'s, e.g. |
| 2011-12-21 | Bus. cards in commercial mailings, e.g. |
| 2010-06-06 | Ltr. accompaniers |
| 2009-11-17 | Cover ltr. accompaniers |
| 2007-07-19 | Bottom-of-letter abbr. |
| 2004-04-21 | Ltr. accompaniers |