Pearlescent Antique Bronze d30
One Pearlescent Polyhedral Antique Bronze d30 die with white ink.
The d30 is not a standard in most RPGs these days, though for a time some roleplaying games were made to use the d30. It's primary attraction to gamers these days is the unique nature of the d30, and it's one of those dice that die-hard gamers and dice fans always have somewhere in their collections.
The unique design and the manufacturing process used to create this die means that your d30 will look very similar but not exactly like the dice shown in the photos.