Here I offer you the swedish national insignia (the swedish air force "Flygvapnet"), which is hard to get right if you don't have the correct measurements... I found them in a swedish book called "Kronmärkt" by Leif Hellström and Leif Fredin (thanx for inspiration....)
The insignia is made in Adobe Photoshop CS 3.
I have included the early 1930's version (white circle, black crowns), the slightly later 1930's version (light blue circle, yellow crowns with black outlines), the new standard m/1940 which is still going strong (the latest 1930's version with a yellow ring) and the low visibility version of m/1940, which is used on JAS 39 Gripen, Tp 84 Hercules among others.
