From the Classics Corner, the long running SOSSI Journal series, the author has made available additional material and some color versions of the images pictured in the Journal column.
The Classics Corner #83 - November/December 2009
CC83 Figure 1 (Prague I with crown black 10h + Ivo A)
CC83 Figure 2 (Prague I without crown upright black 10h + 20h)
CC83 Figure 3 (Prague I without crown inverted black 10h + 20h)
CC83 Figure 4 (Prague I without crown sideways left black 10h)
CC83 Figure 5 (Prague I without crown upright red 10h + 20h)
CC83 Figure 6 (Prague I without crown inverted red 10h)
CC83 Figure 7 (Prague I without crown sideways left red 10h + 20h)
CC83 Figure 8
CC83 Figure 9
CC83 Figure 10
CC83 Figure 11
CC83 Figure 12a
CC83 Figure 12b
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CC83 Figure 14
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CC83 Figure 20
CC83 Figure 21
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CC83 Figure 24
CC83 Figure 25a
CC83 Figure 25b
CC83 Figure 25c
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CC83 Figure 29a
CC83 Figure 29b
CC83 Figure 30
CC83 Figure 31a
CC83 Figure 31b
CC83 Figure 32a
CC83 Figure 32b
CC83 Figure 33