What are the different types of card stock for postcards?
100# Cover, c1s (coated one side) ideally suited for postcard mailing 100# Cover, c2s (coated two sides) probably the most popular 10# Point c1s/c2s (coated one side/coated two sides) luxurious premium sheet with brilliant finish 12# Point c1s/c2s (coated one side/coated two sides) heavier version of 10# Point