1914 War Charity opt set 1+2f-5+2Kr, the rare PROOF opts with sl diff opt setting, inc 10+2f red opt (issued in black). All top marginal blks of 4. Superb fresh MNH. SG 153-69(p) cat £400+ for M, so £800+ MNH, Mi 145-61(p) cat €560+ for M so €1020+, both for normals, plus premium for MNH proof blks. (17 blks is 4 sets). (P)