I noticed that in the GPMC the AJZ is listed as follows:
Under the $100 Issue -1988 table
Quantity printed for (H) 10,000,000 and (CL) is listed as Included
Under the Checklist of Prefix Letters for 19867-1991
AJZ (H) corresponds to 0000000-3172636*
AJZ (CL) corresponds to 6610546*-9999999
I have found a note with Hidden BPN with Serial number 3324313.
I am not sure if anyone is keeping a registry or the GPMC is updating its info. Any suggestions?
