Chas Osborne & Co, 2 Great Scotland Yard, London
12 bore Box Lock Ejector no. 28570

Approximate date of manufacture: Pre-1896

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Heritage Guns' Comment

This gun is a beautifully finished example of the Anson & Deeley boxlock that had become such a hugely successful design by the last decade of the 19th Century and is still made in great numbers today. The action is delightfully engraved with bold scroll and borders and the action is signed by the maker. Furthermore, the stock is a very nicely figured piece of walnut and coupled with our sensitive restoration, this boxlock ejector would make a very pretty and 'shootable' gun for either game or clays.


The Action is of Anson & Deeley design and features:
Double triggers bolted by an automatic top tang safety slide,
Top lever opening, operating a 'Purdey Bolt', passive 'Doll's Head' top rib extension,
Tumbler and sear ejectors to 'Ross' design tripped by slides running from the action knuckle to the main springs,
'Deeley' forend catch.
Gun Weight: 6lb 9 ½ oz Engraving Style: Bold foliate scroll and border.
Trigger Pulls: Front trigger 3 1/2lbs Rear trigger 4 1/2lbs
The Damascus Barrels are 30" in length, chambered for 2 ¾" (70mm) cartridges and are of brazed 'dovetail' lump construction with soft soldered ribs. Top rib is of the smooth, concave, game type. London reproof for 70mm nitro powder cartridges in 2009.

Approximate barrel measurements at date of publication:

Nominal Proof Size
Bore Diameter 9" from Breech
Minimum Wall Thickness
Choke Constriction
Right Barrel
18.7mm (0.736")
0.023" Minimum
0.007" (light 1/4)
Left Barrel
18.7mm (0.736")
0.024" Minimum
0.030" (3/4)

The Straight Hand Stock and Splinter Forend are crafted from highly figured walnut. There are natural 'shakes' in both sides of the body of the stock which are not of structural significance and there are 2 small inlets to the edges on the forend. The stock is lightly cast off for a right-handed shot, features a vacant escutcheon and is finished with a traditional lined horn butt plate secured by engraved pins. We have installed a small engraved pin and ferule to correct a slight warping of the forend wood at the knuckle (not shown in photos below).

Highly figured walnut

The 18 lines per inch chequering is to the normal boxlock design. The stock is finished with a traditional linseed oil based preparation as used on best guns by one of the top English makers. This finish uses no grain fillers to achieve its deep, smooth lustre, only many hours of alternate build and flatting off of the surface.

Approximate stock measurements at date of publication:

Pull to Heel
Pull to Bump
Pull to Centre
Pull to Toe
14 1/2"
14 3/4"
14 1/2"
Drop at Comb
Drop at Face
Drop at Heel
1 1/2"
1 3/4"
2 1/2"
Cast at Comb
Cast at Heel
Negligible" (approximately)
1/8" (approximate)

For the purposes of these measurements, 'Drop at Face' is the 'drop' measurement taken on a line perpendicular to the
line joining the trigger and centre of the butt at approximately 8" from the trigger (front trigger on a double trigger gun).

Patents Exhibited include:
Ross's ejectors patent no. 19395 of 1890,
Anson & Deeley's boxlock patent no. 1756 of 1875,
'Purdey Bolt' patent no. 1104 of 1863,
Deeley's forend fastener patent no. 1422 of 1873.