I took some pics tonight of the writing using some paint to highlight the lettering, but it is still very hard to read. Under a magnifying glass, it looks like "Gqranrmann" or "Gyirainmann". Someone on another site said that it may be Cyrillic?
Once again, I tried loading the pics, but now I get the message that "IE blocked a pop up from Computer One" when I click the add image icon. Anyway, I added them to the album in ellenbr's link above or at the address below.
https://imgur.com/a/UTWGM

Thanks again for your help. Any ideas on value (can I sell it and retire, or buy a small Caribbean island)?