ATLANTIDA COMPAÑIA ARGENTINA DE NAVEGACIÓN SRL.

La Marina Mercante Argentina 1961 gives a horizontal green-over-yellow biband pennant with a white “A” overall.

The archive is coherent, but independent corroboration of this 1950s–1960s operator was not located. Modern Romanian/Argentine namesakes are not evidence for this record. Targeted searches for the full company name, Atlántida SRL and the historical Buenos Aires context found only Rosanoski-derived FOTW material and unrelated namesakes.