Block Larger Than four 1923 (May?) laid batonnè paper ¼a. rose, two complete unused sheets of twelve, one (creases in margin) perforated entirely by the perf. 12 machine, the other with the right-hand pane perforated 6 at top and with traces in the extreme left margin; two used blocks of eight, one pin perf. 6, the other showing perf. compound of 12 and 6. A very scarce and unusual group.