WW1 German Prussian Garde Officer Pickelhaube With Capture Provenance

WW1 German infantry officers pickelhaube of the Prussian Garde souvenired by a British sergeant of the Machine Gun Corps with various capture paperwork from the family who sold it on privately some years ago.
Helmet shows signs of heavy wear but with crisp detailing remaining to its front plate & a very commensurate age patina with some loss of finish in places. The enamel 'Garde' badge is excellent with gold inlay & no chips to enamel. Both of its correct officer cockades are present with flat chinscales to front . The boiled leather of the helmet retains a very nice lacquered finish with a very old bruise to the rear which I suspect was gained from military service. Interior headband & lining is without rips or tears with green leather undersided front & rear peaks.
Coming with it is a folder entitled 'Captured German Guarde Officers Pickelhaube - Captured By Acting Sergeant 51526 ALFRED EDWARD OXLEY, MACHINE GUN CORPS ( Cavalry ) ' .

Code: 14188