The oil painting laid flat on the canvas looks just like an ancient painting recently bought at a high price from a gallery; not to mention swelling or damage, even the paint on it is still vibrant.
It merely has the inevitable cracks of an ancient painting's paint, which not only doesn't diminish its value but rather makes it appear more like an antique.
"Could it be that even this painting is an Ocean Treasure?"
Inspect carefully.
The main subject of the painting is a ship slowly capsizing, to be more precise, it's a Flute Ship that was very popular on the Old Continent 300 years ago.
Of course, it wasn't popular because of its outstanding performance.
It was because, back then, import duties in various countries were levied based on the deck area of ships. The Flute Ship had a very narrow deck but a wide hull, clearly a clever tax-avoidance design.