I am having trouble understanding your headings for each set of printings.
My understanding is that the terms Typographed and Electrotype are interchangeable and have the same meaning. Early in the preparation of the plating guides we decided to use the term Electrotype.
The plates for all the printings were based on the De La Rue plates according the Messrs Purves and Lancaster, supported by a small number of very minor printing imperfections which were transferred. The reason they did not use the De La Rue plates was because they were not compatible with the Melbourne printing equipment.
The stereotype plates are now thought to actually be Electrotype, but on a softer metal.
I have used the headings from the Stanley Gibbons catalogue to align with the SG numbers referred to in the spreadsheet.
The Typographed plates are distinguished as electrotyped (Victoria Government Printing Office, Melbourne) and stereotyped (Commonwealth Stamp Printing Branch, Melbourne) in the 2019 Commonwealth and British Empire Stamps 1840-1970 catalogue.
Have the experts provided Stanley Gibbons with the new information about the type of typographed plates used in the last printing?