Dear hpt, that sounds terrific!
It is difficult enough to even find the TN Collar Tabs. Then not knowing for sure what the Roman & Arabic numerals really stand for - is also a bit frustrating.
Sounds like we need to ID 'where' we find the Landes/Orts Number information (Armband Stamping, ID Books, Photos, etc.) - as well as the time frame, if known?
Even your 'short' list is better than the NO List, which is what TN/TeNo Collectors currently face.
Plus a short list - will only grow longer & that is a nice plus in the TN knowledge base.
When do you 'guesstimate' that Vol. 2 of the German "Police Series" will be on the bookshelves?
Keep up the research and great work!
Txs, Dave/dblmed