"Il sette magnetico" from 1968 presents a captivating exploration of space and energy, rendered through the delicate yet precise medium of etching with aquatint. The composition is a universe of scattered dots and an array of short, dynamic lines, punctuated by a few sweeping, elongated curves that traverse the visual field. This intricate network evokes a sense of cosmic dynamism, reminiscent of stellar constellations, subatomic particles, or magnetic forces at play. The work's monochromatic palette emphasizes the interplay of line and void, drawing the viewer into an expansive, abstract realm. Fontana’s masterful use of the etching plate creates subtle variations in tone and texture, lending a tactile quality to the ethereal subject matter. This piece exemplifies Lucio Fontana’s groundbreaking Spatialist theories, which sought to move beyond the confines of the two-dimensional surface and integrate real space and time into art. While his iconic *Concetti Spaziali* often involved physical interventions into the canvas, "Il sette magnetico" achieves a similar disruption through its suggestion of infinite depth and movement within the print medium. The "magnetic" aspect of the title hints at unseen forces, the invisible energies that shape the universe, a recurring theme in Fontana's oeuvre as he responded to the scientific advancements and space age aspirations of his era. As a multiple, this etching offers collectors an opportunity to acquire a significant example of Fontana’s late career explorations. Printed on Rives paper, the work benefits from the medium's ability to hold fine detail and subtle tonal shifts, showcasing the artist's technical skill alongside his conceptual daring. "Il sette magnetico" not only reflects Fontana's innovative approach to art making but also serves as a potent visual metaphor for the unseen forces that define our reality, making it a compelling addition to any discerning collection of post-war avant-garde art.