This attractive 1977 set from Deutsche Bundespost Berlin highlights four remarkable species exhibited at the Zoo Berlin Aquarium, each paired with an architectural vignette of the aquarium’s entrance. The series includes the vibrant Picasso Triggerfish (20 Pf), the intriguing Paddlefish (30 Pf), the striking Radiated Tortoise (40 Pf), and the powerful Rhinoceros Iguana (50 Pf). Printed with soft gradient backgrounds and detailed biological rendering, the set reflects Berlin’s commitment to zoological education in the 1970s. A desirable thematic issue for collectors of wildlife, reptiles, fish, and German Berlin material, especially in VF mint condition.