This is a rare, vintage Japanese Oshibori tray that can be seen on Deckard's Piano when Rachael sits down to play. It's amazing how many props are still being discovered by sharp eyed collectors around the world.
This piece was discovered by R. Howard on Propsummit we believe. What an amazing find. We scoured parts of Asia to locate some of these antique goodies and now we have a few on hand. This post 1940's hard to find, vintage tray is approx 3 in. x 7 in. made of bamboo. They originally held hot clean towels that were offered to guests before a meal.
Down at the bottom of this post you can see a great shot of one on Deckard's piano when Rachael plays.