Queensland State Archives posted a photo:
Artwork by George Coates.
The Red Emperor is not a true Emperor but a species of snapper native to the Indian Ocean and the western Pacific Ocean. It is an inhabitant of both rocky and coral reefs, preferring flat areas with either a sandy or gravel substrate.
They can be found at depths from 5 to 180 m and can reach a length of 116 cm, though most do not exceed 60 cm. Juveniles often shelter amongst sea urchin spines until large enough to venture out to feed.
Queensland State Archives, Digital Image ID 5973