You have a nice, small gold coin from Sweden. Its value depends on two factors: (1) the gold content, and (2) the premium collectors will pay over and above gold value.
This coin contains 0.065 troy ounces of gold. Multiply the current value of gold (available at web sites such as kitco.com) by 0.065 and you get the value due to gold content. At this writing, gold is at $1530 US dollars per troy ounce, so the value due to gold content is 0.065 x 1530 = $100. But tomorrow the value of gold will be different. Be sure to look it up.
The second factor is the value due to collector demand. For coins that are heavily worn or damaged, there is no collector demand and the value of the coin is equal to the gold value. If your coin is in good shape numismatically (i.e., appealing to coin collectors), you can add these values to the basic gold value:
average circulated: add $20 to basic gold value
well preserved: add $50
fully uncirculated: add $100