Don,
Your right the M1/108 is the third one listed but your #29 is the first transitional badge of Otto Riedel to make the list, thank you for posting them.
Don,
There are two M1/78 Paulmann & Crone badges listed But once again you have posted the first one marked with the makers full name and city. I would say a very early 1924/25 badge.
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