This one has me stumped; it has unusual marks but appears to be solid silver, circa 1800-50, and seems too light at 7" and 49 grams to be CES or Caribbean. Hoping someone has come across similar marks before!
For further research, known Canadian silversmiths with the initials 'C.G.':
Charles Geddes - Halifax, Nova Scotia
Charles Genest - Quebec
Christopher D. Graham - Ottawa
Christian Grothe - Montreal
Caspar Frederic Grunewalt - Montreal
Hello, possibly this image has marks that may have similarities to the missing images and is different from Dognose's image in the other referenced post.