Brand: Buenos Ayres.
Producer: Erzquell Brauerei Bielstein Haas & Co. KG.
Description: White crown cap, white and blue forms (flag of Argentina).
Inside: Black text: "No hay duro que no se ablande".
Plastic line.
Factory sign: R.R.K. (Rauh GmbH & Co. Blechwarenfabrikations-KG).