It's been an interesting year for definitives, with two special issues running in a sort of parallel existence.
As it turned out the greater than normal increase in postage rates in the spring meant that many stamps were purchased before the rise, money in stamps for postage producing a better return than money in the bank, and there were shortages in many post offices. Country definitives were distributed from stores - even to the wrong countries we understand - when Machins had been ordered, business sheets were broken up and sold as singles or blocks.
A mixed 6 x 1st booklet of Jubilee Machins and Scottish Locomotives was issued on 27 September. The Christmas booklets of 12 1st or 2nd were due for issue on 6 November, and the new colour stamps, including booklets of 6 and 12 x 1st were scheduled for 3 January 2013.
booklet of 6 x 1st Jubilee stamps with this code were scheduled for philatelic release on 1 October, and released they were - from Edinburgh to collectors and dealers.
As far as I can tell, nobody has found these in any post office branches yet, except the designated philatelic ones. Many branches are still selling London 2012 booklets. Indeed we were told that these had been recalled after the games: one office which returned them and then ordered replacements were supplied with - yes, more London 2012 booklets! (It has even been suggested that the Post Office Supplies Depot at Swindon has not received any Jubilee books of 6, which might explain why they are not in post offices.)
Supermarkets and corner shops could be selling them, but they will have had Christmas booklets since early November.
So if you know of any outlets - Post Offices, corner shops, newsagents, office suppliers, or supermarkets - which have or have had these for sale, please let us know.