"H" mintmark underneath the date, indicating that they were produced at the Heaton mint in Birmingham. Halfpennies were produced in all years of Victoria's reign except 1837, 1840, 1842, 1849 and 1850. Halfpennies weighing 5.67 grams (one fifth of an ounce) and of 1 inch (25.4 millimetres) diameter (which was to remain the standard size of the coin for the remainder of its existence) were minted in all years of King Edward VII's reign (1901–1910) except 1901. They are similar to the last issues of Queen Victoria except for the king's right-facing bust on the obverse, with the inscription EDWARDVS VII DEI GRA BRITT OMN REX FID DEF IND IMP, and also are extremely reminiscent of the contemporary penny. The reign of King George V produced halfpennies to an unchanged design every year between 1911 and 1936. The obverse shows a left-facing portrait of the king by Sir Bertram Mackennal, with the inscription GEORGIVS V DEI GRA BRITT OMN REX FID DEF IND IMP, and the usual right-facing Britannia on the reverse. Unlike some of the pennies of this reign, no halfpennies have mintmarks from provincial mints. Halfpennies of this reign suffer somewhat from "ghosting", caused by production problems when the image of one side partly comes through to the other; efforts were made to solve the problem with a modification of the king's effigy in 1925, but the problem was not finally solved until a second modification in 1928. A halfpenny exists for King Edward VIII, although strictly speaking it is a pattern which would have been awaiting royal approval about the time that the king abdicated in December 1936. The king insisted that his left profile be used on the coinage instead of the right, which would have been used if he had followed the alternating tradition going back to King Charles II; the obverse has the inscription EDWARDVS VIII D G BR OMN REX F D IND IMP, but in a complete break from tradition Britannia was dropped from the reverse for the first time since 1672, and replaced by a sailing ship, said to represent Sir Francis Drake's Golden Hind. This reverse remained in use for the remainder of the coins' existence. Halfpennies of a similar design to his brother's were produced in each year of the reign of King George VI. The inscription on the obverse reads GEORGIVS VI D G BR OMN REX F