VDP cloche

A cloche (bell) was a fixed and non-retractable firing position made of a thick iron casting which shielded its occupant.

VDP cloches were equipped with three embrasures or crenels for direct vision, providing protection to observers.

VDP cloches were also equipped with periscopes that allowed a greater arc of view.

The cloches were embedded in a thick concrete carapace over a combat, entrance or observation block element of a largely subterranean Maginot fortification.

[1] The similar VP (Vision Périscopique) cloche lacked direct observation ports, presenting a much lower profile.