Perforations: Good perf means almost equal perfs on both sides and if there is no trace of a perf I describe it as trimmed straight. Just OK means that in my opinion there are sufficient perforations, do ask for a scan if it is important to you. Hopefully any other descriptions are clear as being between these descriptions.
QEII - Machin Booklets - 50p Folded
50p Roman Britain No 1 Hadrians Wall.
booklet FB35 pane UMFB39. Perfs good.
50p Aircraft No 1. Armstrong and de Havilland. Cover fault.
booklet FB55 pane UMFB47. Cylinder pane B1 B3 trimed straight left. Cover fault.
50p Pond Life No.4. New phosphor ink.
booklet FB36 pane UMFB40a. Perfs just OK. 1p is a very pale shade, hence price.
50p Aircraft No 2. Viscount and Comet. Cover flaw
booklet FB56 pane WP797. Cover flaw with vapour trail from tail of comet. Left perfs trimmed straight.
50p MCC No 1 Weathervane. Error
booklet FB39 pane UMFB42? Error, original phosphor ink NOT new type so pane is not UMFB42c. Perfs good.
50p Aircraft No 2. Viscount and Comet. Phosphor shift
booklet FB56 pane WP797. Phosphor shift to right and down.
50p MCC No 3 Lords Pavilion. Error.
booklet FB41 pane UMFB42ca. Error, 1p SBR, 13p SBL Phosphor synchronisation. New Phosphor ink. Perfs good.
50p Botanical Gardens No 3 Lillum. Error Orange cover.
booklet FB45a pane UMFB41. Quite different from the normal shades seen. Correct spelling "Mount Stewart". Imperf.
50p Gilbert and Sullivan No 1. Yeoman. Color error
booklet FB51 pane UMFB45. Cover colour pink and black instead of red and black. Good perfs
50p Gilbert and Sullivan No 1. Yeoman.
booklet FB51 pane UMFB45. Short bands on bottom two stamps. Short perfs on right.