Cover Artist ?
Cover Artist Hans Helweg
Cover Artist ?
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PAN 0330 100212
from 1968 Cover Artist ? |
PAN 0330 100212
from 1971 Cover Artist Hans Helweg |
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| Original artwork by Hans Helweg with overlay | |
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| Original artwork by Hans Helweg | |
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| Preliminary sketches by Hans. | |
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| Printer's proof from Hans files. | |
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PAN 0330 100212
from 1979 Cover Artist ? |
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| Also published by PAN as GP68 and X21 | |