used Distinctive letters: Neatly mounted and annotated illustrating the distinctive letters from this plate, comprising printings in black HH, MK (poor), QG, RE, SJ and TI, and printings in red RG and QI; also printings in black BH, BJ, BK and KB without the "O" flaw, margins all round (mostly large but some just clear at places), mostly neatly cancelled (all except one in black); mainly good to fine