Portal:Philately/Stamp of the month archive/6

The Inverted Swan, a 4-pence blue postage stamp issued in 1855 by Western Australia, was one of the world's first invert errors. Technically, it is a "frame invert". In 1854, Western Australia issued its first stamps, featuring the colony's symbol, the Black Swan. The 1d black was engraved in Great Britain by Perkins Bacon while other values, including the 4d blue, were produced in 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.