So I was just able to pick up two balls at a garage sale and wanted to know if anyone could identify them or at least knows their coating type? I'm pretty new to bowling so I can't tell myself.
The first is a Brunswick Rhino ball, matte black, and has a "1991 BPAA U.S. Open, Indianapolis" label on it. BEN5379.
Link with pictures: http://imgur.com/a/1u86G

The second ball is an Ebonite Cyclone ball though so I won't bother in this forum section.

Any help is appreciated! Thanks!

Given it's a 1991 ball and resins weren't out yet, I'd suspect it's a plain Brunswick Black Rhino urethane:
http://123bowl.com/bowling-balls/brunswick/black-rhino/

Thanks! I had a feeling that was the case but the newer Rhino's were different and I couldn't find the older ones nor knew about resin's history, haha.

Actually the first resin Rhino was the purple Rhino Pro

I remember the purple.  Didn't realize it was resin.  Maybe because the teal was much better

it was. There are asymmetric cored plastic balls that seem stronger than that Purple Rhino Pro seemed to me.