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The commercial blockade in the River Elbe during the fifth cholera pandemic.
UMG23A60_220

The commercial blockade in the River Elbe during t...

A floating hospital on the River Volga.
UMG23A60_219

A floating hospital on the River Volga.

Emperor frederick ii
UMG20A30_158

Emperor frederick ii

Fog horn on the coast of north america
UMG20A30_037

Fog horn on the coast of north america

Health Testing On Milk
UMG20A14_008

Health Testing On Milk