England - Breweries

The McMullen brewery was founded in 1827 in Hertford, England. Although in recent years the brewery has downsized it is still independently owned.
Some of the Brewery's Range
Original AK - Continually brewed since 1833
McMullen's Cask ale - Launched in 2006
Steingold Export Draught Lager -
Country -
Bard of Ale - A guest beer launched in 2013
Flying Frog - A guest beer launched in 2014

Over the years the brand identity is updated and re-launched with subtle changes, a change of Logo or a new font.
Sometimes this brand update is done by the new owners after a brewery has been sold, other times just to give the brand a fresh new look on the ever growing market.

Below are some notes to help identify some of these changes and an aid to reference the year of the glass.