A specialty silk piece from the 50's: wood grain or watered silk. The pattern changes with the sun light.  The color is a golden beige. 
 
Moiré, in the textile sense, refers to the technique known as watered silk. In this process, two pieces of wet fabric are overlaid and pressed together with steam. Due to the inevitable misalignment of the threads, the resulting bonded and dry fabric has a distinctive waved appearance.