There are various types of so-called brunost (brown cheese) in Norway. The most common is made of a mix of cow's and goat's milk. The one in the picture is pure goat's cheese ("ekte geitost"). All the variations of brown cheese are in this rectangular shape. They taste nothing like Greek goat's cheese (feta). What they do taste like? You'll just have to drop by and sample.
Below is a lid specially made for these rectangular cheese, available for free in supermarkets. Under the TINE logo (Norway's largest dairy brand) it reads (in English), "One of the things that makes Norwegians Norwegians." I agree. (The cheese slicer is another one of those things.)
This is a very typical Norwegian sandwich: Modest, unadorned, open-faced (there's a whole industry in thin plastic sheets to put between open-faced sandwiches for your lunchbox). These two cheese-on-rye and another cup of coffee was my treat after my walk today.