Lot 72223 – 1d Blue (shades incl. Milky Blue and Dark Blue), t

1d Blue (shades incl. Milky Blue and Dark Blue), three horiz. pairs, each with transfer type 20 at left and types 6, 7 or 10 at right in place of the missing type 16; then four horiz. pairs showing SUBSTITUTED CLICHES: types 3 + 9 (in lieu of 20 + 16), types 15 + 6 (also in lieu of 20 + 16), types 15 + 18 (in lieu of 17 + 18) and types 20 + 19 (in lieu of 18 + 19), all on two exhibit pages, fine and useful for exhibition (7 pairs)