Germany - Breweries

Städtische Brauerei was a brewery in Clausthal Harz Germany founded in 1697. I couldn't find out much about the Brewery other than it was taken over by the Binding Group and closed in 1978.
Some of the Brewery's Range
Claus-Bräu -
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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.