Lot 30630 – Proof overprint in black for the 5-line format of the

Proof overprint in black for the 5-line format of the low values: Right sheet marginal block of twelve of Stereo Setting 1 with Type 2 backstamp in violet and initialled “B.J.B.”, on thick whitish paper, showing flat tail to “9” of “1922” cliché variety, neatly mounted and expertly written up on album page, very fine (12). Hibernian PR4a; €840+.