The M78 Mauser (ZIG-ZAG) was chambered in 10.6mm,9mm Mauser and 7.6mm, highly collectable, last value i heard of was $7K in exc. cond. The only gun somewhat similar was the Webley "Fosberry" although I have never seen one in the flesh. There is not the same market for European replicas as there is for US models, so you won't see this unless orig.