Hello Debbie,
Welcome to TNet, and thanks for showing us your bowl. It looks post war to me. Here's another precinct heard from:
eBay Guides - Camille Naudot porcelains-misidentification
"So what are these pieces that bear a similar mark but not the style of Camille Naudot's work? This NC (or CN) mark is documented to be on exports from Japan after WWII. The mark, impressed, printed or scratched, is found on pieces by many different makers (Miyao/Py, Maruri, Kowa Toki (figures marked with KW before numbers) and others) and many different importers/exporters (lefton, esd, ardalt (often with AA before the model number), l'amour, ucagco, coronet, sadek, acme, crown shafford, tilso and others). Naudot did not use a printed or impressed mark or printed or impressed model numbers with his mark. To this date no one has documented what this mark means. Are these pieces fake or misleading? No, as Naudot did not produce anything like these figures, they are not fakes or reproductions and since Naudot is in reality a very obscure company, the Japanese would unlikely be copying his company'smark. It must be taken that the NC mark on Japanese porcelains is simply a coincidence...
One guide does get the Japanese origin correct for this mark-The World of Head Vase Planters by Mike Posgay and Ian Warner, 1992. However, as the rest of us, they can only hypothesize the meaning of the mark."
NC Japan Hand Painted Lidded Pedestal Candy Dish