Extremely Rare Art Nouveau Tile Panel by Osterather Mosaik- und Wandplattenfabrik, Osterath, Germany, c. 1902–1910. The panel depicts a graceful swan gliding among blooming water lilies, framed by stylised foliage and rippling water. Executed in soft shades of blue, white, brown, green and golden yellow, the design embodies the refined naturalism and flowing elegance that defined German Art Nouveau at its finest. The composition extends seamlessly across all three tiles, creating a striking decorative tableau with strong visual impact. Delicately modelled relief details enhance the flowers, leaves and swan, while the subtle tube-lined outlines give depth and definition to the scene.The panel remains in very good antique condition, left tile with light damage to right side, all tiles with age-related crazing and minor signs of wear consistent with its age.