Portugal - Breweries

Central de Cervejas (full name: Sociedade Central de Cervejas e Bebidas, S.A.) is a Portuguese brewery, founded in 1934. The SAGRES brand was first brewed in 1940 as a prestige beer.
Some of the Brewery's Range
Sagres -
Sagres Preta -
Sagres Bohemia - Launched in 2005
Sagres Radler - Launched in 2013
Sagres Sem Alcool - A light non-alcoholic beer launched in 2005
Sagres Sem Alcool Preta - A Dark non-alcoholic beer launched in 2007

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.