Rare Wehrmacht artillery trigger firing lanyard

One of the rarest accessories to any Wehrmacht artillery piece, for sure always missing! These lanyards with a pullweight where attached to the breech of the gun to create a safe space between the breech and the gunner. The breech would fly back with a high velocity breaking anything in its path such as limbs. Firing a artillery piece live without one would result in heavy injuries. The weight is nicely marked bzo indicating production by J. F. Kayser, Maschinenfabrik, Nürnberg-O. For sure one of the rarest items I’ve had to offer!