Akro Agate Prize Name Corkscrew Marble - Orange and Blue

This is an Akro Agate Prize Name corkscrew marble featuring a stunning orange and blue combination. It is a bit over 5/8" in diameter. It has about 10 little ticks over its surface, most hard to see without magnification, and its surface is still very glossy, so I grade it at the low end (NM-, 8.1).