Couple of Photos re last post
Right is a photo of my I phone 5 next to a plate from the series to give an idea of the size. They are steel and quite heavy...also of interest is the damage to the surface due to rough handling over the years. The AWM search the collection facility on the web indicates they have two sets. A through search of their holdings has only found this single set.
Two possibilities. One has gone missing, or it was incorrectly cataloged in the first place.
Left photo from left to right Original plate from Berger held by AWM paint sample from original Can applied to plate 2016 and finally Florite reproduction using modern available pigment ...Colour KGJ ..of course