细节
Proof Block Larger Than four 4d. red-brown and 10d. lilac (deep shade), imperforate plate proofs on ungummed paper watermarked "10", 4d. in block of six (3x2), 10d. in lower-right corner block of four showing current number "5" in selvedge, also a single 10d. in a paler shade; light diagonal crease crosses two 10d., otherwise fine