This multicolour offset lithograph by Harald Naegeli (*1939), internationally known as the “Sprayer of Zurich”, was created in 1990 and bears the bold title “For Humane Science – An End to Brutal Animal Testing”. Printed on sturdy card stock in a large format (84 x 59.4 cm), the piece is hand-numbered (50/50) and signed by the artist in red ink. The composition is a striking example of Naegeli’s minimalist, expressive line work, echoing his iconic graffiti figures that gained widespread attention in the 1970s. Beneath the bold visual lies a clear ethical message—calling for humane treatment of animals in scientific research. Naegeli’s work aligns with the broader movement of politically engaged and conceptual art, alongside artists such as Joseph Beuys, Jean-Michel Basquiat, Keith Haring, Banksy, Barbara Kruger, and Jenny Holzer. His linear, calligraphic style also shows affinities with Paul Klee, Henri Michaux, Cy Twombly, and Joan Miró, situating his work within both street art and 20th-century European modernism. Naegeli’s conceptual and performative undertones place him in dialogue with figures like Marina Abramović, Chris Burden, Yoko Ono, Vito Acconci, and Allan Kaprow, while his street-based interventions align with movements like Fluxus, Situationism, and contemporary urban art. Collectors of street art and political graphics will also see echoes of JR, Swoon, Invader, RETNA, ROA, Os Gemeos, Blu, Miss.Tic, and ZEVS in Naegeli’s work, who himself was one of the earliest artists to blend public space, protest, and fine art sensibilities. This lithograph is not only a rare collectible but also an important document in the visual history of activism, animal rights, and 20th-century conceptual and street art. Minimal folding around the edges. Due to size surprasing 100 cm in one lateral for packaging i will send it in a extra wide roller hard cardboard tube. The last image is part of the description