Re: German Unit Organization/Abbreviation Question
I'm not sure if this helps you, but in terms of bumper numbers, the Prime Portal has some pictures where you can see them on various German vehicles. Might help with trying to decode the format if there isn't simply someone around here who has an actual source.
Re: German Unit Organization/Abbreviation Question
Simple - the tank pictures belongs to 5th company/Panzerbataillon 104. That would be 5./PzB104 - Check out http://www.panzerbataillon104.de.tt/ - they even got the famous German Panzerlied and other songs from the 30s available for download...
No 'bumber numbers' down below company level AFAIK.
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'Qui desiderat pacem, bellum praeparat' - Flavius Vegetius Renatus (~400 AD), in the preface to 'De re militari'