Valentine cards were cherished because of the sentimentality attached to them. Designing cards became a highly competitive market, with a vast array of motifs and verses. Suddenly, cards were being produced in tens of thousands, from whimsy and slightly vulgar, to truly sentimental, their designs included lace paper, embossed envelopes, glass or metal mirrors, ribbons, dried ferns and fake advertisements, bank notes and marriage licenses. See more.