Miyabi has a couple of options at 24 cm (9.45 ") at https://origami-papier.eu/Origami-uni-Rueckseite-weiss__24-25-cm, and as this is in the EU, it might be better if you are in France. I use that shop frequently, in particular stacks of 15 cm papier (6").
Keith Giddings already mentioned Viereck. Amazon.de seems to have some as well, actually at 25 cm, even if it can be hard to decode. Does "printed colourful on one side" mean it is white on the other? Origami-shop.com if you want anything art level quality. Previously I sometimes bought at colortree which was endorsed by British Origami, but they retired in March and today BOS references amazon.co.uk. Otherwise I sometimes buy rolls of Kraft-paper and cut it myself. Really strong, often 60-65 gsm paper, but also 80 gsm like this https://www.rajapack.dk/kr./gaveindpakning/gavepapir/kraftpapir-paa-rulle_PDT01592.html Duo-coloured versions of this may often be found at supermarkets and the like a couple of months before Christmas. Regards, Hans > Den 2. sep. 2024 kl. 13.56 skrev Janet Hamilton via Origami > <origami@lists.digitalorigami.com>: > > OrigamiUSA has the 10” kami, white on one side at this link > https://origamiusa.org/catalog/products/kami-assorted-10 > > It is 100 sheets in a pack, 20 different colors, so 5 sheets of each color. > > I think it is actually 24 or 25 cm, which is a bit short of 10” though, if > that matters to you. > > The actual description when you click on the product is: > “Standard origami paper, 20 assorted bright colors; colored on one side, > white on the other. > 10” squares 100 sheets” > > Janet > >> I think there used to be 10-inch paper, sold in packs of 100 sheets, with >> many different colors on one side, and white on the other side. >> >> Zack Brown
