-- range (157) on album leaves, with perf. 16 used singles (4, all on dated pieces); perf. 14 blued paper used singles (10, all on dated pieces), pairs (11) and blocks of four (2); perf. 14 white paper unused singles (7), used singles (44, including sixteen with watermark inverted), pairs (24), strips of four (2) and block of six. S.G. Spec. #1150+.