Wednesday, painted in 1978, presents a commanding arrangement of geometric forms in which Herrera reduces pictorial experience to its most essential tensions. Working in acrylic on a vertical canvas measuring 167.6 by 106.7 centimeters, she deploys sharply delineated fields of color that meet along precise, uncompromising edges, generating a visual energy that feels simultaneously still and charged. The composition rewards sustained looking, as relationships between forms shift subtly depending on the viewer's position and the quality of light, revealing a depth of spatial intelligence beneath what might first appear as radical simplicity. Herrera spent decades refining this language of hard-edged abstraction largely outside public recognition, yet her commitment to geometric clarity never wavered. Wednesday belongs to a period in the late 1970s when her formal vocabulary had reached full maturity, the compositions stripped of any decorative impulse and built instead on pure structural logic. The work exemplifies her belief that color and form are inseparable forces, each activating the other, so that the painting operates as a complete and self-sufficient object rather than a record of gesture or emotion. The work carries the added distinction of having been held in the collection of the Museum Pfalzgalerie Kaiserslautern in Germany, attesting to its recognized institutional significance within the broader history of geometric abstraction. The canvas is signed and offered in unframed condition, presenting an opportunity to acquire a substantive example of Herrera's practice at a moment when her legacy is receiving the sustained critical and museological attention it has long deserved.