Dating royal copenhagen backstamps
The Worcester Royal Porcelain Co Ltd was formed in 1862.
The marks almost always included a code to indicate the year of manufacture.
Between 18 specific indications of the year of manufacture are rare but may sometimes be found in the form of the last two figures of the date, eg , printed below the standard mark.
From 1867 a letter system was also used to indicate the year of manufacture. This series of codes continued until the 1960s when the dots are arranged around the R (signifying registered) in a circle.
From 1966 the date coding system was rarely used and from the mid 1960s, a different format of factory stamp was also adopted for bone china tableware.
The date included is the year of introduction of the design, not the date of manufacture.
In April 1988 a system of year of manufacture identification that fitted with that used by Spode was introduced and an M within a diamond was incorporated below the factory mark.
In January 1989 new factory stamps were used with an N in a diamond under the mark.
Soon afterward black numbers were introduced to identify the lithographer.
These numbers were replaced with grey ones in August to reduce their visual impact.Tags: Adult Dating, affair dating, sex dating