Sorry Rob, Werner & Jorit I forgot to proof read what I typied, I omitted the words 'close to being' between actually and laid down in the above qoute.
That will teach me to write things quickly!
I've read advanced contracts were placed for forgings and castings and material was gathered at a slipway.
The sheets I've seen at the NMM are the ones that would have been given to Swan Hunter, Beardmore, Fairfield or John brown to begin ordering, sub-contracting and construction for these ships.
I believe the orders with the shipbuilding firms was not cancelled until Feb 1922, although construction was stopped in November 1921 to await the outcome of Washington.
Once the outcomes of that was known, only then was the material gathered dispersed with or recycled by the shipbuilding firms.
Although the official orders were placed only 1 month before they were put on hold (October-November 1921) I feel these shipbuilding firms would have known sooner than October that their estimates had been accepted and that is why I believe the state of construction for the G3's was more advanced than one would expect after only 1 month.
Normally it takes a while for the Treasury and the Admiralty to draw up the appropriate paperwork etc.
I've found from my studies of the WWI armaments industry (Which includes contracts placed with private industry by the Admiralty, War Office, Ministry of Munitions, Air Ministry etc) that often these things were communicated via telephone many months before official contracts were drawn up.
This was vital so the contracting firm could get labour, machinery and their sub-contract orders in at the earliest opportunity.
Advanced orders, as was usual with large calibre guns, were also placed with the armament firms, alhough I'm not sure how far they got with their orders.
Once again my apologies for the confusion I hope I've now made my position clear this time.