Hi Ed: In answer to your question.... Yes there is a size difference..... this is a model 1886 Bavarian wappen with the extra stems and leaves at the knees of the 2 lions. In 1896, they removed those and made the wappen smaller which fit the M 95 style shell better. However, there were different sizes of wappen to fit on smaller/larger helmets. The grey steel M 15 wappen also kept this smaller 1896 size. BTW the Bavarians did not adopt the pickelhaube until 1886, they resisted Prussian domination, symbolic or otherwise even during WW1. If you wish to learn more about the evolution of the pickelhaube visit The Kaiser's Bunker.com on the net. There is a huge amount of information there.