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38. Perforations partially doubled: In the 19th century, perforator operators might withdraw sheets that were inserted off true, and reinsert them to do it right. Because paper was far more expensive than it is today, those doubly perforated sheets tended to be issued. Blocks might go into the $75 range for an average stamp and increase for more expensive varieties. Another category that is seen less often is partial rows of perforations in the margins of large Banknote issues. It is likely that these were caused by extra pins stored in those positions against the need for replacements as pins in the normal settings broke. Single used examples run in the $25 range, more for higher-value stamps or mint examples and blocks.
Type 38: This example of Scott 205 has partially doubled perforations resulting from storage of extra pins to replace pins that broke.
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