Clues as to age: Army & Navy Cooperative was created in 1871. They marketed guns made in Birmingham.
-- The SN is 9507, fairly low.
-- The barrels are Siemen's steel. Though Siemen took out his patent in 1865, steel barrels were not widely used before 1880. Purdey made his first in 1880.
-- The Anson fore-end patent use number is a high one 25453. William Anson took out his patent in 1872 and it ultimately became very widely used in the industry. There is an Anson fore-end on an 1881 Reilly PUN 3587 but PUN's cannot be reliably used to date a gun. Apparently PUN's were sold in blocks to gunmakers and if Scott made the gun, he had probably bought 5,000 of them. However, since it has a PUN you'd think it should be before 1886 when the patent expired.
-- The proof marks are 1887-1896.
-- So it looks like it's a late 1880's gun.
Edit: Joseph Brazier made highly-regarded locks then actions from at least the 1850's on. He apparently had several levels of quality the highest being "Ashes" which would be stamped thusly:
![[Linked Image from i.imgur.com]](https://i.imgur.com/plwWoCM.png)