I have a vintage W.B. Caldwell's syrup bottle with syrup spelled Sypup what's it worth
It's a good question, does a mold error or misspelling have an affect on a bottle's value?
The short answer: it depends. The longer answer can be found in the many replies I have made to other questions on this matter. Search this forum for the word "error" or "misspelling"
Here is one link to "error": https://forum.antiquebottles-glass.com/search?Search=error