1948 Post Horn Overprints with a Vertical Band

Other Michel users, feel free to correct me, but first for your general info:

The "ribbon" overprint has suffix "I"

Vertical overprint varieties exist for this overprint. In Michel, they have the suffix "S" for single vertical overprint, "SD" for double vertical overprint, and other combinations...

So, for example: 36 I S

The key to finding your overprints, is recognizing that the 1pf was not normally issued with the overprint. You have to look in the section that lists the unauthorized but postally accepted overprints. It is in the section between Michel 68 and Michel 69 of the American/British Zones, that starts off as "1948 Juni/Aug..."

Your stamps, if genuine, would be
1pf = I/I S
3pf = II/I S
4pf = III/I S
5pf = IV/I S
6pf = V/I S
20pf = VI/I S
42pf = VII/I S
60pf = VIII/I S
84pf = IX/I S

Here's the problem. Michel only lists the 3pf and 5pf as coming with single vertical ribbon overprint variety. That, to me, is a warning sign. But my Michel is 2015. Maybe new discoveries? I'll post a catalog snipped a later.

I didn't check to see if your overprint matches the various known genuine overprints.

Interested in hearing what others more experience with Michel and better versed with Germany have to say... open to correction.

My AFA catalog does list the vertical overprints, as "unofficial overprints" and lists the stamps shown as R-I to R-IX.

I expect the "Schlegel A BPP" marking is the signature of a stamp authenticator. But these can be forged too.