REMOVE

1. Mural
2. volcanic ash, lime coating, …
3. Paintings
4. North American; Central Amer …
5. Fine Arts Museums of San Fra …

WHAT

1. volcanic ash, lime coatin … (1)

WHERE

1. Mexico (1)
2. North American; Central A … (1)

WHO

1. Fine Arts Museums of San … (1)
2. Unknown (1)

WHEN

1. 600 (1)
2. 600 - 750 (1)
3. 750 (1)
4. Mexico (1)