Type III Ferrichrome tape
https://en.m.wikipedia.org/wiki/Compact_Cassette_tape_types_and_formulations
https://en.m.wikipedia.org/wiki/Compact_Cassette_tape_types_and_formulations
Type III Ferrichrome tape https://en.m.wikipedia.org/wiki/Compact_Cassette_tape_types_and_formulations |