Here are the bulk of choices from the script EW:

Edmund Wagner

Ernst Wagner

Ernst Weigand

Ernst Werner

Ernst Wolf

Ewald Wolf

I believe Baumgarten has an W. Eblen with the script EW. My vote would be from either Ernst Wolf or more likely Ewald Wolf. After the Wolf mechanics, I'd lean toward Ernst Werner. We've(Royal We) been chasing those odd Script Rs in a brace for a time. That denotes the tube & tubeset work. Not sure who owns those just yet.

Cheers,

Raimey
rse