WW1 British 'Duerrs Life Guard' Trench Mirror

A 'Lifeguard' 1915 Patent Periscope made by F.Duerr & Sons, Manchester .These were privately purchased by officers to be used as trench periscopes with the threat of enemy snipers ever present .
Contained within a pop stud fastened tan canvas case its wide belt loop is intact to the rear. This example has the 'Lifeguard Patent Duerr' motif to both mirror plates with only the postal initials 'S.W.' which is distinctly WW1 period manufacture only. Undamaged mirrors with hinged action working perfectly.
Now becoming harder to find.

Code: 13817