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 Orchids No 1. Missing phosphor
booklet FB27 pane UMFB34. Perfs trimmed at left.
50p Gilbert and Sullivan No 2. Pirates. Missing phosphor
booklet FB52 pane UMFB46. Missing phosphor but poor perfs on left, supposedly less than fifty copies of this booklet MP exist.
50p MCC No 3 Lords Pavilion. Error.
booklet FB41 pane UMFB42ca. Error, 1p SBR, 13p SBL Phosphor synchronisation. New Phosphor ink. Perfs good.
50p Aircraft No 1. Armstrong and de Havilland. Phosphor error
booklet FB55 pane UMFB47.
50p Aircraft No 2. Viscount and Comet. Phosphor shift
booklet FB56 pane WP797. Phosphor shift to right and down.
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 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. Cover fault.
booklet FB55 pane UMFB47. Cylinder pane B1 B3 trimed straight left. Cover fault.
50p Gilbert and Sullivan No 1. Yeoman. Missing Phosphor
booklet FB51 pane UMFB45. Good perfs.