WW1 British Officer`s Youlten`s No.2 Trench Periscope

A most pleasing WW1 British Officer`s private purchase trench periscope made by Youlten`s of London.
The periscope measures 9 inches in length and extends to 13 1/2 inches when drawn, you simply pull apart and twist both end caps to reveal the mirror lenses (still in good order).
The original leather case is in very good condition apart from some age related wear/weakness to the fold down flap & tab (shown in images).
The Youlten company produced various visual aids for the private purchase market which included the rifle butt periscope that turned out to be far more costly than the rifle it was attached too .

Code: 50714