In past 2 years I had seen lot of Gandhi Perf shift error, but recently I saw Perforation shift USA Gandhi 4 cents stamp.!!
One-way perforation mistakes occur when sheets of stamps are moved either vertically or horizontally during the perforation process.
Two-way perforation mistakes occur when sheets of stamps are moved both vertically and horizontally during the perforation process, instead of just one direction.
Following is example of One-way perf error.
If anyone knows more about Perf Shift USA Gandhi stamp than I would like to know following.
1) How many USA Gandhi stamps or sheets has Perf shift.?
2) Is this only in Gandhi 4 cents stamps or also in Gandhi 8 cents stamps?
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