If more pictures are needed please just ask.
What is your opinion? Where do you place this piece?
My items have the later variant of piping.
I cannot comment in any definitive sense on the item first posted here.
I assume my collar tab is a little earlier than the ones Friedrich posted. The bullion on the numbers is the same style. The only difference is the braiding around the edge of the tab, which is white and black, instead of bullion and black. Thank you to every one who has posted so far.
The documents are extracts from the Mitteilungsblaetter der RZM.
Thank you for the photos, they helpful in my research of this tab.