Painted in 1937, this intimate oil on masonite captures Frida Kahlo's rendering of her husband and fellow artist Diego Rivera with the same psychological intensity she brought to her celebrated self-portraits. At 46 by 32 centimetres, the work is characteristically modest in scale yet commanding in presence, presenting Rivera in three-quarter view against a plain background that strips away all distraction and fixes the viewer's attention entirely on his broad, expressive face. Kahlo applies paint with a controlled, almost devotional precision here, her brushwork describing his features with the careful observation of someone who has studied her subject not merely as a painter but as a lifelong intimate. The portrait belongs to a pivotal moment in Kahlo's career, painted the same year she produced some of her most emotionally charged canvases and during a period of intense personal and creative ferment in her relationship with Rivera. That biographical weight quietly saturates the image. There is something between adoration and scrutiny in how she renders him, the gaze she constructs for him suggesting an inner life the viewer is permitted to glimpse but never fully enter. The signed masonite support, a material Kahlo favoured for its smooth surface and compact format, contributes to the work's sense of preciousness and portability, as if it were made to be held close. For collectors, this work represents an exceptionally rare opportunity to acquire a signed canvas by one of the twentieth century's most culturally significant artists. Kahlo's market has remained consistently strong across decades, and works on the secondary market from her hand, particularly signed portraits with documented provenance, are encountered only infrequently. Currently held at the Art Gallery of New South Wales, the piece arrives with the institutional visibility that further affirms its standing and long-term value within any serious collection of modern masters.