First day cover and four stamps at 18
- Made:
- 1987
- maker:
- Science Museum
First day cover and four stamps at 18, 22, 31 and 34p, celebrating the tercentenary of publication of Sir Isaac Newton's Principia Mathematica, issued 24 March 1987. Stamps designed by Sarah Godwin, issued by the Post Office. Text by Jon Darius, Science Museum. Cover is 'No.1' [of series?]