Antonio De Simone (1851 – 1907) was an Italian painter. From date through date, he painted many maritime paintings sometimes call "yacht portraits". HSA Historical Americana Auction Catalog, p. 75, at Google Books
TommasoDe Simone (1805 – 1888) was an Italian painter. From date through date, he painted many gouache paintings of British yachts.
https://art.thewalters.org/detail/92879/s-y-narada/ https://useum.org/artwork/HMS-Shannon-Antonio-de-Simone-the-Elder-1860