This 3D model originated as an artist’s interpretation of an item described in text:

“These 4 feet rods had an opaline tip looking like a clawed fist clutching a skull and a jagged bottom that looked like the rod was actually a part of something bigger and snapped off from that bigger something. They were covered in good deities’ and celestial’s names, all spelled in reverse and sullied with black blood.”

~ Excerpt from Fiendish Codex II: Tyrants of the Nine Hells (p. 156)

The model itself was made to be a realistic version of the illustration it originated from.