This is quite a coin. It's big, 35 mm diameter. And it's made out of silver:
10 KRONER: 0.579 troy ounces silver
The building is the famous Eidsval (Eidsvoll) Mansion, birthplace of Norwegian Constitution. To find the current value of this coin, first look up the current value of silver at kitco.com, then multiply to find the base value (BV). For instance, if silver is selling at $17 US dollars per troy ounce, the BV is 0.579 x 17 = $9.84.
Once you have BV, here are typical values:
average circulated: BV + $1
well preserved: BV + $5
fully uncirculated: BV + $10
These are approximate retail prices, i.e., what a collector is likely to pay for a problem-free coin. If you wanted to sell your coin to a coin dealer, the dealer would likely pay a few percent behind BV.