At your convenience, please send an image of the backside of a marked piece.
Great, thank you. Also, what pieces are in each place setting?
Thank you for the additional information. One last thing, if you hold a cup up to the light and look to the bottom of the cup, does a picture of a geisha girl appear?
Some of the porcelain sets have lithophane bottoms to reveal a 'secret' picture of a geisha; but if you don't see one, then it's not a lithophane set.
The type of mark on yours indicates these were sold on US Army & Navy bases from the "Central Purchasing Office" after WWII.
The suggested insurance or replacement value for your set is $300.
An exceptionally large amount of these were produced for export ware during the 20th century and currently there is a very large supply of wares of this type available for sale on the market. In essence, the supply now exceeds the demand; thus sale prices are rather flat. If you were to sell this set, it will likely garner less than $100 at this time.
If you do need to sell the set at this time, the best platform would be online through Ebay, Craigslist or Etsy. I also recommend finding a local consignment shop. I do not recommend selling outright to a dealer, as they will offer 10% - 30% of the lowest perceived value.
Just checking in to see if you viewed your answer and if you are seeking further assistance?
Please let me know.