When did the first living coelacanth get photographed after being thought extinct?

The coelacanth was long famous as a supposed extinct fish, but the first living specimen was found in 1938 off South Africa. Although not a mammal, the discovery became famous among vertebrate zoologists and museum scientists studying mammal evolution too. It showed that so-called 'living fossils' could survive in deep or remote habitats. The event remains one of the great zoological surprises of the 20th century.