Hello, Here is a comparison between a Bavarian and Prussian prong backed cap cockade. As anyone can see, they're not even close. Even in a black and white photo like this they are easily differentiated by the location of the white rings. The Bavarian Rautenborte was introduced with their new uniform regulations in 1916 (if anyone needs the exact date, let me know). In the final months of 1917, it was ordered reduced to just a vertical strip on the front edges of the collar. This change was supposed to be in effect for the duration of the war, but in practice, many later war Bavarian tunics never had it applied. Of course, it was worn in the field, but period photos of this are few compared with photos of Bavarians without it.