Originally brewed to celebrate the return to Sunderland of Major Ernest Vaux, and the Maxim Gun Detachment. It would seem that the brewing process began around the time that Major Vaux left Sunderland, on 27th January 1900.
In 1938, the strength of the ale was increased, leading to a name change of Double Maxim.
"Major Ernest Vaux and his comrades of the local Maxim Detachment of the Imperial Yeomanry arrived at Southampton this morning in the transport Assaye, and left for the North about 10 o'clock." Sunderland Daily Echo, Tuesday 11th June 1901
"The inhabitants of New Herrington district did honour last night in enthusiastic fashion to Major Vaux and his comrades of the Maxim Gun Detachment of the 1st Durham Volunteer Artillery.....In New Herrington the crowd near the Miners' Hall was particularly dense. Inside the building a company, which numbered about 300, sat down to a first-class repast. The caterer was Mr George Davison, and everything was served in tip-top style, the meal being accompanied by Maxim ale of exceptional quality, and said to have been brewed when the Major left England for South Africa." Sunderland Daily Echo, Wednesday 3rd July 1901
I wonder how much a bottle, whether empty or unopened, would cost.
The Maxim Brewery, which dates from 2007, following the closure of Vaux Brewery in 1999, acknowledges the ABW-connection on its home page.
(You must be aged at least 18 to enter the site) It now brews Double Maxim.