Help with markings on a 18PR shell casing - Other Equipment - The

Hi. I was wondering if someone could tell me what all the markings on this casing mean - i do not have any military knowledge but am guessing this is from a British 18 pounder cannon. It looks like is may have been refilled a few times is this correct? I thought the OMG might be the company but c

QF 18-pounder gun - Wikipedia

Artillery Shell Identification - Other Equipment - The Great War

military - Can anyone tell me anything about the markings on these

Heavy Ordnance Catalog

18 Pounder Cartridge Case Markings - Other Equipment - The Great

Help Identifying 18 pounder ammunition - General Ammunition

World War 1 - 18 PR II Shell Casing –

content.invisioncic.com/r224821/monthly_07_2012/po

world war one - WW1 shell case markings - History Stack Exchange

british 18 pounder case paint markings - Arms and other weapons

Original British WWI Era Royal Tank Regiment Tobacco Can Shell