Over the last month or so, I've made friends with John Shirk, a fellow who happens to own Indicare Precision Gage Repair in Dayton, Ohio. He actually called in to Working Hands Radio one night, and we had a great conversation about dial indicators.

John recently repaired an old "ALINA" indicator for me that used to be my father's. I got "sticky" many years ago so I just kept it at home due to it's personal history and value to me as one of my father's tools. Now, it's back in service once again after a 25-year vacation.

During the past few weeks, John and I have enjoyed a few conversations about precision gauges and measuring equipment. He gave me a "heads up" that something special was headed my way, and here it is:

The letter below will explain this dial indicator in more detail.

Allison V-1710-7 (V-1710-C4) V-12 engine (A19600125000) engine. One-half left front view.

P-38 LIGHTNING.

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