Flashback Tata Crucible Quiz Part 22

• Hallmark was named for its founder Joyce C Hall. The company would have probably been as also-ran and the greeting-card industry itself would have been a fringe industry but for an innovation that Hallmark brought to the industry. The innovation has to do with the way greeting cards are sold. What is the innovation?

• Ernest Mahler developed it, of 1918 Kotex fame, from cellucotton, and was introduced under the name Celluwipes. How do we know it now?