unmounted mint 2c Carmine rotary, booklet pane of six (583a), three complete panes, each showing part of plate no., incl. plate nos. 18697 (two) and 18698, all never hinged, perfs. in at T. on two, appear almost fine, panes showing portions of the plate no. are scarce, Scott retail for never hinged panes $375.00 est.