raf world war 11 terminology

[ygdrasil]

You guys on Quizzes are so knowledgeable I thought I'd try you on a puzzler of my own. On reading my late father's RAF log book there is an abbreviation that the IWM's "expert" couldn't help with. It is PRO and is used every time there is a decoration/award mentioned. I think it MIGHT mean promulgated, but am unsure. If it does I have no idea what it might mean.
Any military historians out there, I would love to pick your brains.

[razza]

I think it was an abbreviation for public records office.

[Quizmonster]

Are you sure it is 'P' rather than 'R' or 'S'? I ask because a log-book was presumably handwritten, so an error might easily be made in reading it.
The 'RO' element is most likely to mean 'Routine Orders' if it refers to something promulgated. On RAF bases in WWII and thereafter...perhaps even still...there were two vital documents prominently displayed all over the place. These were Station Standing Orders (SSOs), for long-term local policy matters, and Station Routine Orders (SROs) for ongoing happenings.

[brokenbank]

From my many years in the RAF, I recall we had PRO's which were Promulgated Routine Orders as on accasions it was my job to type them ( wax stencils in my days)

These included such things as awards and promotions and I remember typing my own promotion to the exalted rank of Corporal.

[ygdrasil]

Many thanks. Promulgated Routine Orders would seem to fit.
How strange the "general public" could be more helpful than the Imperial War Museum. All I got there was being referred to a book with some common WW11 abbreviations used by civilians and the so called expert on RAF matters didn't have a clue.
I am very grateful, as this will help me on the next stage of my personal quest!