Unidentified Noritake sugar bowl and creamer

I bought these beautiful dinnerware items at a goodwill store. I have tried to look them up to see what pattern they are. I called Noritake and they said according to the backstamp on my dinnerware, the pattern began production in 1918. This pattern was never named or assigned a pattern number; this was not unusual for this era. Most of the information they had on these pre-WWII patterns was lost during the war. They gave me websites to try and find the pattern to see how much it's worth, but none of the websites have anything about the dinnerware I have. It's a mystery to me and I would like to find out more information about my pieces. I hope someone knows more information. It's driving me crazy lol Thank you!!