Information concerning the Prussian / Preussen Redoubt

[ukok]

Hi folks !

I have some original photographs in an official OHMS envelope which is titled The Preussen Redoubt. I'm trying to ascertain where this is as i also have a collection of trench maps - i'd like to connect the photos with the relevant map ( if it's there )

I've only managed to find several mentions of this on Google including a reference to the Battle Of Arras.

They're part of a collection of material related to an RFA officer who was at Ypres in 1917 and St Quentin in 1918 with the 47th Brigade, later attached to the 250th.

Any info greatly appreciated