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Prev:
Hersiliola simony
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Hertz
&
Maxwell
Hertz
Short desc: Hertz
Things in this design:
person
Hertz
(syn. of
Heinrich Hertz
)
This design is used by one stamp:
Czechoslovakia 12/7/1959 1k dt=radio & telegraph inventors perf=11.75x11.25
Record of changes
