The total value of an artist’s artworks sold at auction over a specific period. This metric reflects the artist’s overall market activity and demand in monetary terms. The middle value of all realized ...

A miniature photograph of the moon, beard hairs whose owner has been dead for centuries, a shaving of Egyptian mummy bone, flowerlike patterns constructed from butterfly scales and algae called ...

Back in 1949, Sid Woodhams of Ganton near Malton was given a 19th century naturalist’s field microscope for his 12th birthday. Although the pocket-sized, brass microscope wasn’t especially rare or ...

A miniature photograph of the moon, beard hairs whose owner has been dead for centuries, a shaving of Egyptian mummy bone, flowerlike patterns constructed from butterfly scales and algae called ...