Executed in 1991, this intimate sketch captures the earliest conceptual energy behind one of the twentieth century's most transformative buildings. Working across a modest 22.9 by 30.5 centimeter sheet, Gehry traces the riverfront elevation of the Guggenheim Museum Bilbao in the loose, searching lines that defined his design process, where form was discovered through gesture rather than prescribed from the outset. The drawing pulses with creative momentum, conveying the fluid, almost organic massing that would eventually be realized in titanium and limestone along the banks of the Nervión River. To hold this work is to stand at the precise moment a global architectural landmark moved from imagination into material possibility. Drawings of this provenance and historical significance surface with considerable rarity. Retained within Gehry's personal Los Angeles collection before its offering through the Los Angeles County Museum of Art, this sheet carries an unbroken chain of ownership that connects the object directly to the hand that made it and the mind that conceived the building it depicts. The signature confirms what the lines already communicate, that this is primary source material from an architect whose influence on contemporary urbanism, museum culture, and structural engineering remains without peer. For the collector focused on architecture, works on paper, or postwar and contemporary practice more broadly, this sketch occupies a category unto itself, functioning simultaneously as historical document, aesthetic object, and artifact of cultural consequence.