In Oud werkpaard, Constant Permeke presents a powerful depiction of a workhorse. The painting features earthy tones of browns and greens, capturing the strength and resilience of the animal. The horse stands in a rugged landscape, suggesting a connection to the labor it represents.

The expressive brushstrokes add a sense of movement and life to the scene. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. Viewers can observe the thick application of paint, particularly in the horse's mane and the surrounding environment. The dimensions are approximately 100 x 80 cm, making it a significant piece that commands attention.

The use of color and form reflects the expressive style characteristic of Permeke's work. Constant Permeke was a prominent figure in Belgian Expressionism, known for his focus on rural life and labor. Oud werkpaard is a testament to his interest in the relationship between humans and animals, particularly in agricultural settings. An interesting fact about this work is that it embodies Permeke's belief in the dignity of labor, showcasing the horse as a symbol of strength and endurance.

This painting reflects the artist's deep connection to the countryside and its inhabitants.