Posted By:
Scot ReaderTed,
See my post just above your query, which I have edited.
I see two possibilities:
1. Conventional wisdom holds: My eBay survey data point is wrong and Ewing exists with 350. This means EPDG print began with 350.
2. Conventional wisdom is wrong: My eBay survey data point is correct and Ewing does not exist with 350. This means EPDG print began before 350.