Then the tall, dark forest would echo with the boom of an elephant-tusk horn, whose sound was all the more weird since it came from between human jaws with which the instrument was decorated. The Great White Queen A Tale of Treasure and Treason
Then there is a din of elephant-tusk horns and the clatter of the elephant-hide drums. The Story of Baden-Powell 'The Wolf That Never Sleeps'
The great barrel-like drums, with their grim ornamentations, boomed forth, and bands of elephant-tusk horns added to the deafening din. The Great White Queen A Tale of Treasure and Treason