Richard Ginori Backstamp Question

[luckyfinds1985]

I have some demitasse sets. The backstamps have  different letters and numbers on the pieces. What do those letters and numbers/codes mean? Also, does anyone know the name of this pattern? I have gone through R and looked at patterns and have not found it. 

[wdel97]

!970'S TO 1980'S. I am certain how Ginori was using various letters and numbers during this time. I do not known the pattern name

[luckyfinds1985]

Walter, thank you for telling me when these were made. 

Anyone have idea about what the different codes mean? Anyone know the name of this pattern? I was unable to find it connected with pattern name.

[sienner921]

Is there information readily available on his stamps? I have a series of F and G dinner plates and platters with the Manifattura di Doccia stamp and also looking to narrow down the window of time of production.

Thank you