Here you can select the number of cards to be placed in a row for each of supported screen resolutions. Your current resolution is highlighted in this way.
it is a genuine unused, o.g., never hinged, top margin Plate No. 20688 block of four with pencil notation in the top margin and just into the top left stamp, each top stamp with a small tear at the top.
it is a genuine unused, o.g., previously hinged, top right margin Plate No. 20551 block of four (the bottom stamps never hinged), the top stamps with a diagonal light crease.
it is a genuine unused, o.g., hinged, upper left margin Plate No. 20550 block of four (the bottom stamps never hinged), the top stamps separated vertically.