Portal:Philately/Stamp of the month archive/6
The Perth with different frames around the swan design for each value.
In January 1855, additional 4d stamps were needed. When the printing stone was brought out of storage it was found that two of the impressions had been damaged, so they had to be redone. One of the replaced frames was tilted; the other was accidentally redone upside-down. Ninety-seven sheets were printed before the mistake was discovered and corrected, resulting in a total of 388 errors being printed.The errors went unrecognized and unreported for several years and only 15 complete copies, plus a part of a stamp in a strip of three, have survived.