Painting of a sailboat in the ocean under a cloudy sky

Artist&#39;s impression of a supermassive black hole

Man in a suit and hat leaning against a tree

Painting of people on a beach with a boat in the background

Painting of a woman in a green dress

Black and white drawing of a man and woman standing in front of a…

Black and white drawing of a coat of arms with a bird perched atop it

Black and white drawing of a coat of arms with a shield in the center

Old Chinese banknote with a portrait of a man on it