Gregor von Helmersen

Gregor von Helmersen (1803–1885) was a Russian Empire geologist, explorer and geographer.

Also recorded as Grigory Petrovich Helmersen; Georg von Helmersen; Helmersen; Von Helmersen; G. Helmersen; G. von Helmersen.

Overview

Catalogue entries for maps and atlases state plate, state, colouring and condition. VALÉORINE records this subject so that lots referring to it can be described consistently.

In detail

Baltic German geologist (1803–1885)

Sources

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reference work · Reputable secondary · Wikipedia
“Gregor von Helmersen”, English Wikipedia, consulted as further reading
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reference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q67676: Gregor von Helmersen
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