JF Ptak Science Books Post 2508
1923 was a tough year for most Germans so far as chocolate was concerned, though Riquet (the advertiser in the striking graphic, below) was promoting their ("enchanting" and "irresistible") goods very prominently, so I guess there was still some good demand for it no matter what happened to the fabric of social/economic Germany. But it was in January--when this ad was published in Illustrirte Zeitung--that things started to go very badly for Germany. By the end of 1922 it was apparent in Germany that they could make their next reparations installment payment (in January, 1923); the French and Belgians, among others, didn't believe it and got very quickly pissed, and within days responded very aggressively, militarily occupying the Ruhr district. The Ruhr was home to German industry and electrical production, and manufactures in general, and the government-led response to the invading force was peaceful though it did call on the workers to go on a general strike. And so it came to pass that no production to speak of was happening, and the tight-cashed German government, which was still under obligation to pay the strikers, did so, but created the money out of nothing, just printing it as necessary. This would be the start of a disaster that would lead to a greatly debilitating and damaging hyper-inflation, which helped pave the way to a failure of the Weimar government, and finally helping to give rise to Adolf Hitler--it was all downhill from there.
Chocolate of course had been around for a long time by this point--especially in Central and South America, where it reaches back about 3700 years to to Olmecs, and carried forward to the Aztecs. Christopher Columbus bumped into it during his fourth voyage, but chocolate as "chocolate" really didn't make it to high society consumption until the late 16th century; then some more years, until in the early 17th century came the chocolate craze, eventually winding its way to anyone with a little disposable income, to the modern day when some chocolates (like Hershey Kisses) are hardly chocolate anymore, but have the near-scent of it.
At this point in 1923, five years after the war, and more years than that into a crippled economy, it would have been a luxury for most people in Germany to be able to afford some of this Riquet chocolate. It was certainly not uncommon to see advertisements for luxury goods during hard times, though. Having looked at every page of the popular weekly magazines like the Illustrated London News, Illustrirte Zeitung, and Scientific American for the 1914-1918 period, I can safely but not experimentally say that there was plenty of advertising revenue collected by these mags for the sale of luxury goods. This extends too to Life magazine for 1936-1945, where there was also "a lot" of advertisement for common and semi-luxurious goods that wrapped themselves up in patriotic war efforts (cigarettes are among the most conspicuous of these win-the-war/smoke-Lucky-Strikes ad campaigns).
I'm not taking issue with Ricquet, not at all--I think that the ad was simply "standard". But it did strike me as being somewhat loaded with potential zeitgeist, like the ad I found for traveling to Czechoslovakia for "wintertime fun!" dated October 1, 1938.