Bière 33 was the product of a company in Saigon called Brasseries et Glacières d'Indochine, known as BGI, The brew was not world class but was ubiquitous in Vietnam. BGI also produced Bière La Rue which was perhaps milder in taste but was not widely distributed.

BGI was nationalized in 1977 and its successor company continues to sell both brands of beer along with several American and European brews under license. 

Above photo taken on Nguyen Du street, Vung Tau in 1972.