Monday’s ad is for an old French brewery, Brasserie de Gallia. The original brewery was founded before 1878 but rechristened New Gallia in 1890, when it moved to Paris. It struggled after World War 2, and eventually closed in 1968. But last year it was relaunched as Gallia Paris. I’m not sure when the ad is from, but 1950s or before seems like a safe bet.