work at the Computer History Museum in Mountain view, CA
our punch card section, we have 3 IBM 026 Keypunches.
you lift the cover of the print portion of the keypunch;
is the size of the actual ribbons;
also have an IBM 029 keypunch that uses the same ribbon;
of NOS keypunch Ribbons;
box you sent me shows;
ribbons you sent me are 12.7 mm wide.
box of ribbons you sent me are for some IBM printer but not for the IBM
will be expecting a full refund soon.