I have the following balls for sale.  All used balls are drilled right handed with spans of Approx. 4-3/4" (middle finger), and 4-7/8" (ring finger).
Shipping is not included in the price. The used Storm balls have 10 -15 games on them.

NIB Balls

14lb EBONITE Apex Intensity P.O. 3-4"  - $70
14lb EBONITE Tornado TPS  P.O. 3-4"  -  $60
14lb TRACK   Stomp Black  P.O. 3-4"  -  $70

USED Balls

14lb STORM Trauma  P.O. 3"  -  $50
14lb STORM Trauma ER  P.O. 3"  - $50
14lb STORM Eraser PBT P.O. 3" - $50
14lb TRACK  Enforcer P.O. 3" - $20
15lb EBONITE  Tidal Wave W.O.  P.O. 2" - $20
15lb EBONITE  Tidal Wave   P.O. 2" - $20
15lb BRUNSWICK Teal Pro Rhino Pin In - $10
15lb BRUNSWICK Teal Pro Rhino P.O. 4" -  $10
15lb BRUNSWICK Attack Zone - Green Pearl - (Pay Shipping and its yours)