So I think it is number E302/4006 grun where it is coded under example on page 117 on the 1930/1931 page.
As far as I can understand the guide, this was produced in 1930/31 in Ikora/Myra, then again in 1936 and 1939 in Ikora only, then in 1949 with a three digit code 113 in both Myra and Ikora and again in 1951 with a four digit code 8113 in both Myra and Ikora.
So, those 113 and 8113 are on the same code line as E302. I don't know whether the green was produced in the 1949 and 1951 productions but it does seem to definitely come under 1930/1931 and 1936 and 1939 where Ikora was produced in this shape.
Open to correction if anyone else has the book and can double check my understanding of the coding.
And thank you because having checked the book I've realised my beloved purple and yellow vase appears in the coloured reps catalogues of 1928! I'd not remembered it was so early - and it wasn't produced after 1931
