This one is interesting in that I have two stages to present. The RPM shows on both serifs and on the upper curve. The later stage shows clear evidence of the die having been lightly abraded, as the relief of the Date and MM are lower. This has the effect of making these features appear slimmer since they are wider at their bases, and after abrasion the bases are removed.
I tried to enhance the comparison by animating the two stages:
I tried to enhance the comparison by animating the two stages:
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