| - |
30c |
multi |
ovpt, Alexander Graham Bell & early telephone, w. unwmk, p. 14.25 | |
|
|
| - |
40c |
multi |
ovpt, Johannes Gutenberg, w. unwmk, p. 14.25 | |
|
|
| - |
60c |
multi |
ovpt, James Watt, w. unwmk, p. 14.25 | |
|
|
| - |
$1 |
multi |
ovpt, Anton van Leeuwenhoek & early microscope, w. unwmk, p. 14.25 | |
|
|
| - |
$4 |
multi |
ovpt, Louis Braille & hands reading Braille, w. unwmk, p. 14.25 | |
|
|
| - |
$5 |
multi |
ovpt, Galileo Galilei & telescope, w. unwmk, p. 14.25 | |
|
|
| - |
$6 |
multi |
on issue=Inventors and Inventions-$6 (2), w. St Edwards crown & CA | — |
— |
|
| - |
$6 |
multi |
on issue=Inventors and Inventions-$6 (2), Clermont, w. St Edwards crown & CA | — |
— |
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