Hello
Prior to 1897 the regulation for the wear of the pickelhaube kokarde was only one kokarde (state kokarde) to the right side, this concerning:
Baden, Bavaria, Hessia-Darmstadt, Mecklemburg Schwering and Strelitz, Prussia, Saxony, Wurtemberg.
but the wear of the Kokarde is more complicate in the "small states" regiments annexed and incorporated in Prussian Army from 1867
this have two kokardes:
Left side: Land kokarde- Right side: prussian kokarde
Here is the list
Anhalt (IR 93),Brunswick (IR 92 from 1886) Lippe-Detmodlt (IR55/III), Oldenburg (IR 91), Reuss (IR 96/II), Saxe Altenburg (IR 96/I),Saxe Coburg Gotha (IR 95/I-II), Saxe Meiningen (IR 95/II),Saxe Weimar ( IR 94), Schaumburg Lippe (IR 55/III) Schwarzburg Rudolstadt (IR 96/III), Schwarzburg Sonderhausen (IR 71/I), Waldeck Pyrmont (IR 83/III)
Bremen (IR 75), Hamburg (IR 76/I-II) Lübeck (IR 76/III)
Last problem the state kokarde was kept in case of mutation.
You imagine the great combination !!!
All this problems was abolished in 1897 with the wear of the Reichkokarde
Regards