2515: Marble, travertine, ecaussine etc, w/n roughly trimmed/merely cut etc

251511: Marble and travertine, crude or roughly trimmed 251512: Marble & travertine, merely cut, by sawing or otherwise into blocks e 251520: Ecaussine & other calcareous monumental or building stone; alabaster 2515: Marble, travertine, ecaussine etc, w/n roughly trimmed/merely cut etc