This chart/map is from the Entrance to the Baltic and shows Approaches to Oslo Fjord.

As shown in images, this chart shows some age-marks, small tears and yellowing.

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: 104cm x 70cm