Cumana Ltd 80 Track BBC formatter disk 5.25" Floppy Disk

Cumana Ltd 80 Track BBC formatter disk -  5.25" Floppy Disk
Used BBC Disk Formatter Floppy Disk for Acorn BBC B Microcomputer.
 
It needs to be loaded on an 80 track drive and can Format 40 or 80 Track Discs on an 80 track or 40/80 track Drive.
 
Appears to be in good condition but is untested.