Original DTD specs

I suspect Air Ministry Department of Technical Development standards were deemed Secret with limited distribution, because I have yet to ever see an original copy. I have many references in all sorts of literature to DTD specs but even that great laxative ebay has yet to purge out an original document from somebodies shed.

Does anybody have an original DTD document ?

Finally I have found some original DTD specs from the late twenties, which, as I thought, are subject to the Official Secrets Act 1911 – 1920, so I can’t tell you where I found them. In fact I didn’t. I don’t know what you are talking about ! What DTD standards ? I’m sorry, I have to catch a..no! Please NO ! I have kids ! Mum ! MUMMY !!!… .. . . .[ATTACH=CONFIG]232992[/ATTACH]