Huh, so apparently in the last panel of the second row of this comic I established the currency of at least one country in the world of Soup, which I've got to be honest I completely forgot about and probably would have contradicted if the matter ever came up again (although I guess it could have been justified by assuming the later strip took place in a different country with different currency.
This strip, by the way, also served the purpose of providing some foreshadowing, by showing a few characters who I had plans for later in the strip (and also showing one character who appeared once before, and who I intended to bring back later...)
Hm, sorry for the low image quality and weird pixelation artifacts. This is, alas, the first strip for which I'd lost the original Adobe Illustrator files and for which I only have the exported bitmap files... and unfortunately the bitmap file in question is, well, like this. When I first started the comic I saved all the strips as gifs before later switching to png files, and I think what must have happened in this case is that I had first saved it as a gif file, and then resaved the gif as a png rather than newly exporting a png from the original Illustrator file. Anyway, when and if I do locate those old missing Illustrator files (which, again, may very well be on one of the several old hard drives I still have but currently have no way of reading data from), I'll be sure to replace this strip with a higher-quality version.