W W Greener was a member of the second-generation family which had been involved with gunmaking from 1829 to the present day. Today the company still makes the finest sporting shotguns and rifles in its Midlands workshops.William Greener was the first to make guns. Estimate Price: $1,600 - $2,500. Serial number obfuscated. Double Barrel.
The 'mark' variations are to do with the way that the pins through the cation are secured. On an original GP they are held by retaining screws that have to be undone. In a 'Mark II' by circlips. There are also Webley assembled GPs after they took over Greener. Some will have used Greener barrels with a 'knox form' others a standard shot gun barrel with no 'knox form'. These can be found with and without the circlips.Circlips was an abomination added by Webley's when they took over the manufacture of the guns in 1965. MK I was a police gun in 13 bore MK II was a police gun in special 14 bore-restricted chamber MKIII was a police gun with a three prong striker.
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Now while researching this I came across this bit of info on the GP. GP is is for Gaffer or General purpose shotgun. According to Greeners book the exact number of GP shotguns made is impossible to be determined as the serial numbers of these shotguns were not recorded untill 1968. If your gun is a Police gun then the serial number look up I did for you is correct. If your gun is a GP then it's not possible to determine the date made by serial number.
Two models of GP are referenced. Standard model has no checkering and a barrel band. The second model had a better finish, checkering and looked more like a sporting weapon, The Greener Story by Graham Greener has a lot more on this gun and other Greener arms. The book is a bit spendy but I have found it quite useful in my Martini hobby. There are contradictions in the book. The text makes no mention of a MK designation in GP's.
It refers to the checkerd version as Model number 2. A picture directly below the text of a checkered stock model is titled The Greener GP Mk I You should be able to look at the side of the action and see what it says to determine if you have GP or a police gun. The date that the gun was sent to British Proof Test can be found out. Look on the side of the barrel and there will be a code. It will have been so marked within a few weeks, certainly the same year, it was finished. It may have remained in stock with Greener (or Webley) but that will date its year of manufacture. If you visit Greener GP Mk II does exist as a Webley made version, with circlips, of the standard civilian GP.
They are quite awful but also quite rare. However that does not automatically confer value! Yours if it is a GP and not an 'EG' or 'Police Gun' will be the standard GP that wasn't in its civilian version given a 'Mark' number. Only in civilian guise the 'Mark II'. Here is a picture of one with those typical Webley features of no knox form on the barrel.
Also if the image I've copied from elsewhere has come through the Mk II impression on the action. In the UK apparently have or had one for sale. In thirty years I'll admit to only ever seeing two of these GP Mk IIs!
One last year and one about twenty years ago or more. Last edited by enfieldspares; at 06:28 PM. Here's something I found on the internet.how much is 100% correct I don't know but it is an interesting read: 'This futuristic weapon was built for riot control in Egypt during the early 1940's (serial number 417XX) by W. Greener of England. The shotgun was based on an improved Martini action, and was specifically designed to equip the Egyptian Ghafir police force with a weapon that would become useless if it fell into the wrong hands! Production of the earlier Mk.
II Egyptian shotguns (13 and 14 gauge, respectively) began in 1922, with the intent that a criminal who bribed a police officer for his weapon would quickly run out of ammunition in these two obscure calibers. This worked reasonably well until the early 1930's, when enterprising bandits realized they could wrap a standard 16 gauge shell in tape and get it to fire. This practice was somewhat hazardous to the shooter, and one murderer was injured by the resulting blowback of his improvised cartridge which revealed the trick to the Egyptian authorities. III was the result of further design changes designed to remedy this situation. First, the Mk. III chamber and Mk.
III cartridge were bottlenecked, making the tape-wrapping work-around much more difficult. But that wasn't the most interesting design change: the firing pin of the Mk. III is shaped like a fork with three prongs, the outer two being longer than the center prong which contacts the primer. To complement this arrangement, the face of the Mk.