Harvey--If I were researching this topic, I would consult Alastair Hacket's work, The 1935 Silver Jubilee Issue of Great Britain (1982, the Edinburgh Stamp Shop), and Hugh Vallency's Check List of British Photograveur Stamps and Jubilee Stamps, 1934-36 (1936, The Vallency Press, London). Unfortunately, I don't own either of these, so I can't research them. I do not recall ever having read that this cylinder was produced from a different multipositive than other cylinders for sheet-printed stamps of this value. Please let the rest of us know what you find out--this is an interesting topic.
|