The USPS has a new Forever stamp design called Total Solar Eclipse. The stamp commemorates the upcoming August 21 eclipse and uses thermochromic ink, which changes color with heat and light. Read the entire article on USA Today here.
The USPS has a new Forever stamp design called Total Solar Eclipse. The stamp commemorates the upcoming August 21 eclipse and uses thermochromic ink, which changes color with heat and light. Read the entire article on USA Today here.