2020-Current

United States #5800 (63¢) Waterfalls Mint Sheet of 12 Stamps Includes one each: #5800a - Deer Creek Falls, Arizona #5800b - Nevada Fall, California #5800c - Harrison Wright Falls, Pennsylvania #5800d - Lower Falls, Yellow River, Wyoming #5800e -...

United States #5802 (66¢) Life Magnified Mint Sheet of 20 Stamps Includes one each: #5802a - Red Blood Cells #5802b - Macaw Parrot Feather #5802c - Human Hair #5802d - Moss Leaves #5802e - Arranged Diatoms #5802f - Freshwater Protozoans #5802g -...