Hi,
I think solder spilled by coincidence very close to the mark ( arrow 1), a few drops spilled over the letters (2) meaning the mark is genuine and struck before repair (soldering). There is a possibility of more marks obscured by solder (3).
Not to blame the silversmith who repaired the cup; having in mind organic material (coconut), heating at very high temperature needed for silver solder to flow more evenly would have destroyed the coconut.
We should be more open minded in regard of the maker; it could be Continental and very old, too, having in mind coconuts were rare and exotic in the past, worth enough to be silver mounted.
Regards