35th International Auction

europe\great britain\postal stationaries
1979, Centenary of death of Sir Rowland Hill 10 1/2p aerogramme. Final full colour printer's proof unguillotined, unfolded and ungummed on blue airmail paper, together with no less than 12 progressive colour proofs showing multi-colour proofing bars and guidelines for this complex and colourful issue. Also included is the N.G.A./S.L.A.D.E. cover sheet label which indicates the colour run sequence. An outstanding group. [ex J. Kasper] (MS)