This chart/map is covers a portion of the Eastern Archipelago, an area that encompasses twelve seas. This chart shows Sermata Eilanden and Tanimbar Eilanden.
It would make a gorgeous piece to frame and hang on the wall. Perhaps you've sailed these waters?
Old charts are hard to come by as once out of production retailers are required to return stock to be replaced with new editions.
Measures approx: 120cm x 70cm