This is an extract from an expert on Nortiake i spoke to who shall remain anonymous.
"your examples are significantly better quality than most examples I
have come across with this mark on them,
Your set dates approximately 1926 as this mark was initially registered
in Bombay in 1926 though this mark was used for many markets, such as
Australia, New Zealand, Fiji, the then Dutch East Indies, French Indo
China, British Raj India, the Dominion of South Africa, and many
others. It has even been found in Israel which was formerly Palastine.
I have seen a very rare piece of blue desert scene with this mark and it
has a pattern number which was purchased from a family which bought the
set in 1927 and it was sold in Jerusalem. It is also known that this
mark was shipped in small quantities to the United States, and to the
United Kingdom as well.
it is a a very beautiful set. I am sure RC collectors would pay alot of money to get it. Pieces with the red mark are less common than ones with either the blue or the green. The green being the most common of backstamps
to be found with this mark.
Re: Rare Japanese Noritake Royal Crockery
This mark was reused during the late 1950's and 1960's and followed several variations.