Another stunning, hand-colorized fish image from the talented ichthyologist Marcus Elieser Bloch 1723-1799). Bloch was well known for his two large anthologies, Ichtylogie, ou Histoire naturelle, génerale et particuliére des poissons which included over 400 hand-colored plates. He is said to have named the fish for his patrons so while this fish bears the original name Cyprinus Acratus, it looks much like a goldfish to me.
Either way, this stunning, public domain orange/gold fish drawing would make a great addition to any creative work where a dramatic colorized fish image is needed.
This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown.