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Marler's 1982 era images are often 'less than satisfactory' for identification purposes, but his descriptions are wonderful. I hope you will find the blend of his text with 2020 era imaging to be helpful with the identificaiton of your Admiral constant plate varieties.
Each stamp image should be to the left; when you click your cursor over the image, you should see a magnified portion of the image to the right.
If the link is Light Green, you will be directed to a "Place Holder" page which has information from Marler, but no confirmed scanned image (as yet!).
This is clearly a "Work in Progress". Please be patient.
NOTE: A 'Q' next to the position number indicates a lesser degree of 'certainty' about the identification of the plate position.
Comments and suggestions will be appreciated.
Thanks.