I am interested in reading these and archiving the contents.
I restore IBM 1130 systems and am archiving software to be shared with
enthusiasts and museums.
Located in Florida so shipping would be necessary. Might need to be
creative to keep the cost of shipping reasonable.
The cartridges are not sealed, thus you can open them without a clean room.
The plastic hardens over the decades and it is not uncommon to have the
springy metal plate detach. It would be important to get the detached ones
out of the cartridge otherwise they could scratch the recording surface and
ruin the disk.
These have eight sector marks per rotation although the IBM 1130 hardware
skips every other mark to use these as a four sector disk.
Carl