No reliable source has shown this to be the coat of arms of the Mosquito Monarchy. It appears to be a work of fan art. I traced it back to https://www.royalark.net/Nicaragua/mosquito2.htm (Christopher Buyers) I wrote

Damian Clavel, whether it was real or imaginary and he wrote: "I do not know if this is a real coat-of-arms for the Mosquito monarchy. For the period I'm studying (early 19th-century), I know that Miskitu kings had designed their own flag, but I've never yet found a coat of arms." The other published author that could be consulted died in 2016. I wrote Christopher Buyers, but no response. As a decoration for the article, it looks fine, but I worry that it will be seen as authoritative and copied by others, not knowing the provenance. It is currently displayed in over a dozen articles. RAN (talk) 20:59, 2 November 2023 (UTC)

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