I would say that they used them until old stocks were cleared. Though I think the sorting offices/offices of exchange didn't really both about what was old or new stock!But thi is a question I think you should direct to MICHAEL FURFIE of the Postage Due Mail Study Group(PDMSG)

Do NOT use BENZENE! This is a highly toxic solvent and I doubt whether you could buy it now from the normal chemist. I think you are talking here about the solvent sometimes called "BENZINE" - this is an entirely different substance, better known as "lighter fuel" As far as I hav...

Who ever said a doctor blade flaw could be "constant"? Of all the errors found on stamps they are probably the least constant! They are probably the result of ink problems on the cylinder itself most likely caused by particles of dirt, even minute drops of water. But to cut a long story sh...

Dear RobinR. This enquiry seems to have gone unanswered, at least I can't find an answer to it. So perhaps I might be able to assist. This cover correctly paid for postage and registration fee, was presumably found in an ordinary letter box(in the Brighton area) crossed with blue lines. ie. POOC! Th...

Redirection charges for letters were abolished at the end of May 1892 and those for book post, newspapers and postcards at the end of 1894.

I regret that I cannot be more specific but I hope this information helps.

Has anyone any information on the Downey Head cutouts on "pink" paper from STO stationery. The Post Office declatred these to be "illegal".

I think much depends on whether the 2 x2d values are the dark colour or the pale colour types, the latter being introduced in October,1941 .I cannot believe that such a large envelope could be sent to S.America for 4d. unless it was sent prior to 1st.May,1940 when the rates were 2 1/2d plus another ...

I have used e-Bay for years now and have experienced no more trouble than I would have had experienced using a "conventional" seller, face-face. In fact I have acquired numerous bargins and other items that have embelished my collection, considerably. It is true that e-Bay has changed over...

The siuation regarding "cutouts" is somewhat complex! Sometimes the Post Office allowed this, then they didn't, then they changed their minds! Briefly the situation is as follows: Between July 1845-30th.Sept,1870, cutouts were "legal" From 31st,Oct,1870-31st.Dec,1904 cutouts were...

Dear frenchcongo. What is the title of this book on Iraq rates to foreign countries and what price is it? I have several underpaid/postage due covers from that country sent into the UK and the way they have ben charged in the UK is often a complete "mystery. Your book MAY help. My e-mail is: br...

I am a very keen collector of all types of material from the PCGB but some item are proving virtually impossible to obtain. Among those I am looking for are the triangular issues for the 1912 Congress - the ones with coloured centres and black surrounds. Can anyone help?