Owing to its smaller size, the ½-cent stamps in the 1868 issue proved to be more convenient than others of the series. Consequently, the postal authorities arranged to supersede the other larger stamps of 1868 types with corresponding denominations in the size of the ½-cent stamps. The designs were similar to the stamps in the 1868 issue. But a new denomination, 10-cents, was introduced about 1st November, 1874. This new rate covered postal charges for the delivery of eight ounces for samples and patterns sent to the United States of America. The new rate became effective on 1st January, 1875. Portrait of Her Majesty Queen Victoria from a medallion.