More nice covers postagedueguy! Love the special delivery (pink label) cover.
I am not a specialist of the AMG issues; I collect many Germany definitive series stamps with an eye toward postal markings, plate flaws, and unusual covers, mostly. So, here are a couple more AMGs from my accumulation.
The first is a packet card fragment. Parcel was sent from Kiel-Wik (Wik is a northern suburb) to an area further up the peninsula, closer to Denmark. Receiving/revenue protection cancel was done at rural Nieby (contract postal place), which is near a wildlife preserve.
The second item is a stamp, the 6 pf Braunschweig printing with an American censor marking. The complete marking is shown below the stamp. Civil Censorship Division (CCD) Group A was located in Munich. Use of this particular machine, three-line roller, red marking began in February 1946. Source of information is Karl-Heinz Riemer's Die Postzensur Der Allierten In Besetzten Deutschland Nach Der II. Weltkrieg