Germany - Breweries

The Bayerische Staatsbrauerei Weihenstephan (Bavarian State Brewery Weihenstephan) is a German brewery located on the site of the former Weihenstephan Abbey in Freising, Bavaria. Until the 1950s, the brewery described its date of foundation as the year 1146. Then a document allegedly dating to the year 1040 surfaced stating that, Otto I, Bishop of Freising bestowed a brewing right upon the abbey. This document is generally dismissed as a forgery from the early 1600s. The first written record of the brewery dates to the year 1675.
Some of the Brewery's Range
Weihenstephaner 1516 Kellerbier -
Weihenstephaner Festbier -
Weihenstephaner Original Alkoholfrei -
Weihenstephaner Original -

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.