Vin Scully's Scorebook

I spoke with Ken Levine, television writer and Mariners' broadcaster, last week for an article I'm writing elsewhere. The conversation turned at one point to scorekeeping, and he shared this tidbit on Vin Scully:

Normally I can look over somebody's shoulders, I can pick up their scorecard and I can kind of figure it out. With one exception – Vin Scully. He's got lines and dots and stuff. I have no idea. You need Navajo code breakers to figure out Vin's scorebook. I have no idea.

Scully, Levine said, also has the unfortunate habit of throwing his old scorebooks away. (Ernie Harwell, on the other hand, kept everything).