| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Sun Nov 29, 2020 | 20A | Materials from mollusk shells | Eric Berlin | Shortz |
| Sat Apr 21, 2012 | 29A | Nautilus shell liners | Barry C. Silk | Shortz |
| Sun Nov 22, 2009 | 67A | Button materials | Patrick Merrell | Shortz |
| Tue Dec 2, 2008 | 25D | Mother-of-pearls (2) | Matt Ginsberg | Shortz |
| Thu Jun 8, 2006 | 21A | Shell liners | Joe DiPietro | Shortz |
| Mon Aug 4, 1997 | 28D | Mother-of-pearls (2) | Gregory E. Paul | Shortz |
| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Tue May 1, 1984 | 46D | Inner layers of some shells | Helena Farmer | Maleska |
| Tue Apr 5, 1977 | 49A | Shellfish products | Jeanne Wilson | Maleska |
| Sun Aug 20, 1972 | 101A | Pearly shells | Manuel Canyes | Weng |
| Sun Jul 14, 1963 | 59D | Pearly substances. | Jack Luzzatto | Farrar |
| Sat Mar 26, 1960 | 46D | Shellfish yielding mother-of-pearl. | Unknown | Farrar |
| Sun Apr 27, 1958 | 41A | Shellfish. | Grace Hoster | Farrar |
| Sun Apr 9, 1950 | 121A | Layers of shells. | Archie S. Kreiling | Farrar |
| Sun Mar 12, 1944 | 127D | Pearly shellfishes. | Betty C. Crisman | Farrar |