A book has recently been published in Croatia that deals with the uniforms and insignia of the Army, Navy and Air Force 1941-1945. There are numerous photographs, illustrations, rank charts, quite a lot of it is in colour. Next year Volume 2 will be publihsed and it will cover other uniformed organizations, such as Ustasha Army, Gendarmerie, Police, Labour Service, Volksdeutsche units and other paramilitary and political organizations.
Some images from Volume 1 can be seen here: http://www.emedals.ca/catalog.asp?item=CR583#bigPic
Some images from Volume 1 can be seen here: http://www.emedals.ca/catalog.asp?item=CR583#bigPic