>>The maker’s records confirm that this rare gun, serial no. 013586, was sold in 1913 to a Horace E. Cook Esq. According to Geoffrey & Susan Boothroyd in their book “The British Over-And-Under Shotgun” (Chapter 16), H.A.A. Thorn, the then owner of Charles Lancaster, took out a patent (No. 12,057 of May 14, 1910) for "providing double-barreled guns, of the kind having superposed barrels, with ejector mechanism". Expanding on the fact that the patent is for ejectors only, a letter published in "The Field" magazine on June 30, 1910 is mentioned that confirms the guns were purchased ‘in the white’ from Germany and were finished and fitted with ejectors by Lancaster in London. .....<<

Seems Rock Island is the source of the German Origin¿¿¿

Hochachtungsvoll,

Raimey
rse