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 Pond Life No.2. FCP paper error, no Underprint.
booklet FB33a pane UMFB39a. Perfs trimmed left.
50p Aircraft No 1. Armstrong and de Havilland. Perf Shift
booklet FB53 pane UMFB47. Perf Shift to left.
50p Cars No 5, 1896 Lanchester.
booklet FB14B pane UMFB20. Perfs short right.
50p Gilbert and Sullivan No 1. Yeoman.
booklet FB51 pane UMFB45. Short bands on bottom two stamps. Short perfs on right.
50p Roman Britain No 1 Hadrians Wall.
booklet FB35 pane UMFB39. Perfs good.
50p Aircraft No 1. Armstrong and de Havilland. Perf Shift (2nd)
booklet FB55 pane UMFB47. Perf Shift to left.
50p Farm Animals No 4. Sheep. Phosphor error
booklet FB24 pane UMFB31. Perfs trimmed at left.
50p Gilbert and Sullivan No 1. Yeoman. Missing Phosphor
booklet FB51 pane UMFB45. Good perfs.
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 1. Armstrong and de Havilland. Phosphor error
booklet FB55 pane UMFB47.