Hi....I replied as you were sending the new photo.............I'm at a lost. Not sure what it is. Look for any markings through a loupe. They might be hard to find. This might give some clues.............. .
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best............... ........Tim
"God takes us on journeys we don't wish to go, He makes us use roads we don't want to use, To take us to places we never wish to leave." Ashley Null