RARE Combination of Factors:
Perf Margin = E2a, Pane Perforation = See Image
SG Errors: See images
MBPC: DB9(4)A DP28A
STN: S13
Price For Whole Booklet with Pane UMM
50p LB Albion 2/6
References of Booklets and Stamps are from the Following catalogues: