Decorative Antique Turkish Oushak Square Rug, circa date: 1900. The decorative antique Turkish Oushak rugs are known for their gorgeous use of softer colors and beautiful larger scale tribal designs. Geometric and tribal shapes are a design trend that is expected to continue throughout the coming years. Softer but warmer colors are being introduced into palettes that are dominated by neutral tones as a way to brighten the space and add a focal point.