For your consideration, here is a Vintage Retro Colorful 1970's 40 Birds and Bees Postal Correspondence Cards, Postcards, 4 Different Designs.  They are all there.  The first one is loose.  They measure 6 by 4 1/4 inches.  The postcards are in nice shape.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (559.226o-.7hc)

Here are the designs:

*  Mushroom, Grasshopper and Flowers
*  Flowers and Bees
*  Butterflies and Flower
*  Two Birds, Birdhouse and Flowering Branch