The first type was used by the Germans against Belgian forts as early as 1914.  The second set, which totaled four in number, were moved to their emplacements on railway tracks because of their size.  Nicknamed "Paris guns," these weapons had a range of 75 miles and caused hundreds of deaths when they were first used to shell the French capital in early 1918.  FTP give the common nickname of these two weapon systems, both named for the powerful h
The first type was used by the Germans against Belgian forts as early as 1914.  The second set, which totaled four in number, were moved to their emplacements on railway tracks because of their size.  Nicknamed "Paris guns," these weapons had a range of 75 miles and caused hundreds of deaths when they were first used to shell the French capital in early 1918.  FTP give the common nickname of these two weapon systems, both named for the powerful head of the Krupp munitions dynasty.
The first type was used by the Germans against Belgian forts as early as 1914.  
Big Bertha