| Clue | Source | Date |
|---|---|---|
| Letter-shaped beam | New York Times | 17 Mar 2024 |
| Letter-shaped train track beam | New York Times | 14 Mar 2023 |
| Letter-shaped track segment | LA Times Daily | 26 Dec 2021 |
| Beam for train tracks | New York Times | 10 Oct 2021 |
| Letter-shaped beam | New York Times | 14 Nov 2018 |
| Letter-shaped beam | ||
| App for European train travelers | ||
| Girder type | ||
| App for European train travelers | ||
| Train track beam | ||
| Train track bar | ||
| Train track bar | ||
| Certain track | ||
| Train track bar | ||
| Structural bar | ||
| Track segment | ||
| Trolley track | ||
| Type of metal bar | ||
| Shaped bar | ||
| Steel item. | ||
| Steel beam. | ||
| Steel bar. | ||
| Trolley track. | ||
| Type of steel beam. | ||
| Construction beam. | ||
| Part of a track that's laid down |