Date: | 1960s |
Material: | Card stock |
Dimensions: | 7⅜ x 3¼ in. (187 x 83 cm) |
Company: | IBM Forp./ Rocare |
Location: | Armonk, New York, United States |
Used with a handheld device that allowed users in the field to hand punch holes with a special stylus. It had 40 columns using every other column of an 80 column card.
