Many patterns were never named or numbered and most of the information we had on these pre-WWII patterns was lost during the war. The Noritake Company itself will not price or appraise any vintage/antique/out of production pieces, but did refer me to replacements ltd. I did manage to get pricing information there.
The value/replacement cost for pattern 5231 is substantially higher than your typical Rosalie set. Listing includes all items pictured.
8 x 5 piece place settings including dinner plate, salad plate, bowl, teacup, and saucer. Prices provided by James at replacements ltd. This item is in the category "Pottery & Glass\Decorative Cookware, Dinnerware & Serveware\Plates". The seller is "brgnhntrsct" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Indonesia, Taiwan, South Africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi Arabia, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Chile, Colombia, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, Egypt, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.