Missing hold-open - how rare?

[Balder]

George,

Earlier on, you kindly identified the B8 R5 13 inscription on my gun to be Bavarian eighth regiment, fifth company, gun number 13. Jan C. Still states that this regiment fought in the battle of Verdun in 1916.

Claven2 on this forum was the first to point out to me that the absence of the hold-open was somewhat rare

Regards,

Balder