These vintage prints of fish are by Marcus-Eliezer Bloch.
Bloch was born in 1723 in Bavaria. He studied Natural History and Medicine in Berlin. He gained a Doctorate in Medicine in Frankfurt where he practised as a physician until his death in 1799.
Bloch is best known for his encyclopedic work in ichthyology. Between 1782 and 1795 he published “Allgemeine Naturgeschichte der Fische”. This was a 12-volume, beautifully illustrated work on fishes. It laid the foundations of the science of ichthyology.
It's still debated where Bloch got his superb knowledge of ichthyology.
Here are some of his fish for you to choose from.