Greek lyre (musical instrument) with a ceramic sound-box made to resemble a tortoise shell, Athens, 5th-4th century BCE

That’s a really well done turtle shell.

Apollo gave a lovely gift.

https://www.britishmuseum.org/collection/object/G_1816-0610-501

Description

* Wooden lyre with a ceramic imitation tortoise shell sound-box; restored from remains. 

Materials

* wood 
* tortoise-shell 

The imitation is so good, it fooled the British museum!