Many thanks - it tallies perfectly! I've cut out the two versions of the heads and put them side by side to allow a comparison.
Frank

A month or so ago I acquired a portion of the Enid Marx archive. Most of the items involved related to the Wilding series - but the attached image (drawn on tracing paper) looks like an essay for an intaglio head. Can anyone identify it?
Frank

Fred, thanks for raising this excellent topic. I was invited by SG to re-write the introductory notes to the Wilding section in the most recent GB Spec Vol 3 catalogue, but this whole area was the one topic that they were not keen to expand. Essentially SG want to stick to 'cream' and 'whiter' as th...

When digging into reference books a bit more deeply I uncovered Mackay's listing of Parcel Post certificates of posting. This is on pp209-218 of "The Parcel Post of the British Isles" (Mackay, Dumfries 1982). The listing is an excellent starting point, but I've already discovered some ones...

Does anyone know of a listing of GB Certificates of Postings? I have three or four thousand of these and have spent some happy hours sorting them all out. The earliest ones with embossed ½d impressions are in Huggins' books, and the registered ones up to c1980 are in Mackay's Registered Mail book - ...

Not sure it really helps, but there is a picture of the Roquelle on p20 of Philip Beale's book on Sierra Leone.