Elissa writes: We have a one ounce coin, 34-35 mm across, brass or copper. I believe the date is 1805. It says “1 killing”. The word killing is split by a set of crossed arrows, with the 1 being above the word “killing” and in between the arrow tips. The date is between the feathered ends if the arrow. It appears to have the outline of another set of arrows underneath the lettering. ON the other side is a crown above the huge letters C and A. The C and A are inter-twined. Right next the the CA is the (roman numeral?) IV. Three small crowns are to the bottom, right, and left of the letters. The circumference (not the edges of both sides, but the flat edge going all the way around the coin) is dotted with imprinted diamond-shaped points. Do you know what this coin is?
Your coin is 1805 Sweden copper 1 Skilling (48 skilling= 1 riksdaler Species). The monogram and “IV” represent King Gustaf IV Adolf (1792-1809). Value depends on grade (condition). Approximate range: US $1 – $45. Some of these pieces were struck over 18th century 2 Ore flans. If you can see the underdate, the coin is worth double or more.