Cogswell & Harrison Ltd,
141 New Bond Street & 226 Strand, London
'The Avant Tout'
20 bore Box Lock Ejector No. 42126

Approximate date of manufacture:1907

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Heritage Guns' Comment

This gun is a nicely finished and specified example of the famous Cogswell & Harrison version of the Anson & Deeley boxlock that had become such a hugely successful design by the turn of the 19th Century. This very pretty smallbore was TIG sleeved in 2001 and nitro proofed for 70mm cartridges. As is often the case with C&H guns, a very attractive piece of walnut was used in the stocking and with our careful refinishing, the colours, figure and grain have really come to the fore.
With such good wall, bore, choke and stock measurements, this delightful gun would make an excellent companion for upland bird hunting, clay targets and quail.


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' by way of a Scott Spindle;
Three point bolting including Greener cross bolt extension;
'Avant Tout' patent ejector mechanism actuated by a rocking
lever cocked by the movement of the main spring;
'Assisted Opening' when unfired;
'Hackett' style snap-on forend catch;
Removable hinge pin.
Gun weight 5lb 15oz
Engraving style Border and Scroll, Signed action.
Trigger pulls measure approximately: Front trigger 3 ½ lbs Rear trigger 4 ½ lbs
The TIG sleeved steel barrels are 28" in length, chambered for 2 ¾" (70mm) cartridges and are of brazed 'dovetail' lump construction with soft soldered ribs.
Top rib is of sunken, concave type, often described as 'swamped'.
London reproof for 70mm nitro powder cartridges in 2001.

Approximate barrel measurements at date of publication:

Nominal Proof Size
Bore Diameter 9" from Breech
Minimum Wall Thickness
Choke Constriction
Right Barrel
15.6mm (0.614")

0.006" (IC)
Left Barrel
15.6mm (0.614")

0.015" (Mod)

The Straight Hand Stock and Splinter Forend are crafted from well figured walnut. The stock is lightly cast off for a right-handed shot, is fitted with a vacant white metal oval and 7/8" Silver recoil pad. The stock has a filled knot in the LH side of its body and the forend features a nicely engraved tip.

Well Figured Walnut Stock & Forend

The 22 lines per inch chequering has been freshened 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 3/4"
14 7/8"
14 3/4"
15 1/8"
Drop at Comb
Drop at Face
Drop at Heel
1 1/2"
1 3/4"
2 1/4"
Cast at Comb
Cast at Heel
1/8" (approximate)
3/8" (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:
Anson & Deeley's boxlock patent no. 1756 of 1875;
'Purdey Bolt' patent no. 1104 of 1863;
'Scott Spindle' patent no. 2752 of 1865;
Greener's cross bolt top extension patent no. 3090 of 1874;
E. Harrison's ejectors patent no. 11550 of 1888;
Hackett's forend fastener patent no. 964 of 1878.