Topic split and moved from trouble makers.
Here is a blow up of
http://www.cbl.ie/imagegallery/gallery. ... =3&order=2
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X Z c
Chi-Zota Xi or Stigma?
600 7 60
600 7 6
The middle letter looks like Zota but has a slight line to the right in the middle of the Z. Odd
Also the top line above the XZc is to represent a number in Greek but it doesn't fully cover the last letter. Odd
The last letter could be a six or a 60.
Which could read 607 and 60 or 607 and Xi?
More research needed. 8)