Here we have TWO unused cardboard cards which we believe was to have been used on denim jeans. Was issued by Irwin-Phillips Co of Keokuk, Iowa. We would guess them to be from 1950's or 60's, however, I could be wrong. Items like this are a little out of my territory. We purchased a small handful at local Old Threshers Show in Hamilton, Ill. Size is about 2.50 x 3.75".......FREE SHIPPING.